Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler

Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, and 5 Mile – June 12, 2027

Summer Trail Fest Ultra (STFU) is back for its sixth year on Saturday, June 12, 2027, at Sleepy Hollow State Park in Laingsburg, Michigan. This summer trail race is the perfect mix of beginner-friendly and PR-worthy, with smooth, well-marked singletrack and generous cutoffs that make it accessible for both new and experienced trail runners. Whether you’re ready for your first ultra marathon, looking to nail a faster half marathon, or want to test yourself on the 5 mile trail race, STFU delivers a one-of-a-kind Michigan trail running experience.

The course features about 90% well-groomed trails with minimal technical terrain, making it an ideal choice for anyone stepping up to longer trail distances. With 21:42/mile cutoffs for the 50K and 15:18/mile cutoffs for the 50 Mile, you’ll have plenty of time to finish strong. Aid stations are well-stocked with water, electrolytes, gels, and real food options, so you can run without a crew and still be fully supported.

After the finish line, the fun doesn’t stop. Stick around for a post-race cookout featuring burgers, hot dogs, sides, and plenty of trail camaraderie. Spectators can even purchase picnic tickets, so your family and friends can join the celebration too.

Even better? STFU is the summer counterpart to the February Winter Trail Fest (WTF) Half Marathon & 5 Mile in Brighton and Middleville. Each year, the STFU and WTF medals are designed to magnetically connect into one giant finisher medal. You can also register through the WTF + STFU bundle to save 15% off each race while guaranteeing your spot in both events.

 
Why Run STFU?

• Beginner-friendly trail race with smooth, scenic singletrack
• Distances for everyone: 50 Mile, 50K, Half Marathon, and 5 Mile
• 50K, Half, & 5 Mile ruck events
• Generous cutoff times
• Well-stocked aid stations and drop bags so you can run without a crew
• Excessively well-marked course that keeps navigation stress-free
• Post-race cookout celebration at the finish line
• Medals that magnetically connect with Winter Trail Fest for a full-season accomplishment
• Central Michigan location, convenient to both east and west sides of the state
   

Summer Trail Fest Ultra is more than just a race—it’s a celebration of summer trails, community, and the joy of finishing something big. Register today and get ready to STFU and Run on June 12, 2027!

It was a warm day at Summer Trail Fest Ultra 2026, but we still saw new Overall and Age Group course records and heard mention of personal bests. When we created this race, the joke was that STFU stands for Summer Trail Fest Ultra and something else.  Saturday was a great reminder that sometimes, when conditions aren’t perfect, you just have to STFU and RUN.

We welcomed two new divisions this year, the 50 Mile and the 50K Ruck.  Winners were:

50 Mile:  Male:  Alexander Giles (Wheeler) - 8:31:42.88, Female:  Margaret "Joey" Retsema (Grand Haven) - 8:50:54.09

50K Ruck:  Male:  Jay Washington (Detroit) - 8:06:25.97, Female:  Kathy Nolen (Waterford) - 8:51:20.26

But the real story this weekend was the community.

Caleb, Gabe, and Matt Maciag (sons and dad) have been racing with Trivium for over a decade.  They finally swept their first podium in the 5 Mile!  We love that Gabe keeps racing with us when he’s home from college and we were so honored to see them celebrate this moment as a family.

Scarlett Brink, age 14, came all the way from FL with her family and became the first person in our 14 and under category to finish the 50K.  We loved seeing them come through the aid stations together, having fun, and looking awesome.

There was even a finish line proposal!  Congratulations and many, many happy wishes for your future together to Elizabeth Santoli-Johnson and Tony Hill.  If you can run 50K together, you've already passed the test.

The Ruck categories grew exponentially, with 34 finishers across the three distances compared to 19 last year. It was so cool talking to the Motor City Ruck Club, a new group out of Detroit focused on health and “creating an entry point for people who may never consider themselves runners.”  One of their members, Chris Washington, rucked the Half as his first event ever.

It was so fun seeing so many of our Trivium community out there supporting each other.  All three of the women at the top of the Running Series leaderboard were out there. Erica Aikman in the 5 Mile (after winning Huron 100 last weekend!), Sierra Rea in the Half, and Maggie Wood in the 50 Mile.  Erica signed up for the 5 Mile at 4:53 am on race day to make sure she didn’t fall behind!  After finishing the half, Joseph X waited around for fellow series leaderboard competitors Mikayl Losee and Justin Maura to finish the 50K.  We love seeing the friendships that have formed from weekends spent together on the trails and roads.

Finally, we were SO appreciative of all of our volunteers. We loved seeing runners taking care of other runners.  Filling water bottles.  Helping find something in a drop bag.  Running to grab a can of coke.  Talking you into getting back out there for one more loop when you didn’t think you could keep going.  And we were so grateful for them staying later than planned and stepping into roles they hadn’t originally signed up for.

Summer Trail Fest has always been a race where a lot of different goals can exist in the same place. A first trail race. A first ultra. A first ruck. A new course record. A family milestone. A personal best. Or simply a day spent with good people on the trails. That's what we'll remember most from Summer Trail Fest 2026. Not just the miles or the finish times, but the families, friends, volunteers, crews, clubs, and fellow runners who spent the day taking care of each other. Thanks for making it such a special weekend. We can't wait to do it again next June.

The STFU 5 Mile is a fast, fun, and flowy single-loop course through the scenic trails of Sleepy Hollow State Park. With just 132 feet of elevation gain and nearly all singletrack, it's the perfect mix of runnable and rewarding. The trails are usually in prime shape—soft, shaded, and smooth—making it an ideal early-summer challenge. Course markings are clear with turn signs at every junction, flagging every tenth of a mile, and bright surveyor flags guiding you through open areas. Expect lively aid stations, packed with fuel and great vibes, just when you need them most!

Schedule

June 11th, 2027

Early Packet Pickup - 4:30-6:00 pm at Sleepy Hollow Park7835 E Price Road, Laingsburg, MI 48848
North Pavilion at the Beach Area - see the Athlete Guide for a map

June 12th, 2027 - Race Day!

• Packet Pickup & Ruck Weigh In Start - 6:00 am - 7:45 am
  • 5:30-6:00 am packet pickup is for 50 Milers & 50K Ruckers.
• 50K Ruck Start Time - 6:30 am (Note, aid stations may not be set up until the official race start)
• Pre-Race Announcements - 7:20 am
• 50K, Half Marathon and Half Marathon Ruck Start Time - 7:30 am
• 5 Mile and 5 Mile Ruck Start Time - 8:00 am
• 5 Mile Award Time (estimated) - 9:30 am
• Half Marathon Award Time (estimated) - 10:30 am
• 50K & 50K Ruck Cut-Off (15.5 Mile) - 12:40 pm
• Course Closes - 6:45 pm

Cut Offs

The 5 Mile course is open 8:00 am - 6:45 pm (10 hours, 45 minutes).  Generous cutoff—plenty of time to finish!

Aid Stations

There is 1 aid station in the 5 Mile at mile 3.8 that has water and Tailwind.  All aid stations have basic first aid, electrolytes, and feminine hygiene supplies.  Bathrooms are located near several aid stations. Check out the aid station chart for all the details!

Course Map

This is a course map on Strava. You can view the course and elevation, as well as download a GPX file from this link to use with your compatible GPS running watch. 

Course Records

Overall course records are based on gun time; age group records are based on chip time.

The STFU 50 Mile is a nearly all-trail, three loop course at Sleepy Hollow State Park plus an added short section. The single track is not very hilly, but if it rains it can get very muddy. Overall this course is a great opportunity for first timer ultra trail runners, runners stepping up in distance to the 50 Mile, and vets looking for a well executed race day.  With an extremely well-marked course, well-stocked aid stations, two drop bag, and only 1800' of elevation gain, you're in for a great day on the trails!

Schedule

June 11th, 2027

Early Packet Pickup - 4:30-6:00 pm at Sleepy Hollow Park7835 E Price Road, Laingsburg, MI 48848

• North Pavilion at the Beach Area - see the Athlete Guide for a map
• We strongly encourage 50 Mile runners to utilize early packet pickup.

June 12th, 2027 - Race Day!

• Packet Pickup & Ruck Weigh In Start - 6:00 am - 7:45 am
  • 5:30-6:00 am packet pickup is for 50 Milers & 50K Ruckers.
• 50 Mile Start Time - 6:00 am
• 50K Ruck and 50K Early Start Time - 6:30 am (please note 50K early start athletes are not eligible for awards).
• Pre-Race Announcements - 7:20 am
• 50K, Half Marathon and Half Marathon Ruck Start Time - 7:30 am
• 5 Mile and 5 Mile Ruck Start Time - 8:00 am
• 5 Mile Award Time (estimated) - 9:30 am
• Half Marathon Award Time (estimated) - 10:30 am
• 50K & 50K Ruck Cut-Off (15.5 Mile) - 1:08pm
• Course Closes - 6:45 pm

Cut Offs

The 50 Mile course is open 6:00 am - 6:45 pm (12 hours, 45 minutes).  This allows an overall average pace of 15:18/mile.

There are hard cut offs at Aid Station 6 at mile 18.6 at 10:45 and mile 34.1 at 2:41 pm.

Aid Stations 3 and 4 are soft cut offs.  These soft cut offs are in place to keep you aware of the required overall average pace.  If you are falling far behind pace, and finishing the race would require you to run a large positive split, we may cut you off at this location.  You can view these on the aid station chart.

Aid Stations

There are 6 aid stations in the 50 Mile that are passed three times for 18 stops total.  All aid stations have water and Tailwind, plus a mix of Hüma gels, salty + sweet snacks, trail mix, hummus wraps, pierogis, and more.  All aid stations have basic first aid, electrolytes, and feminine hygiene supplies.  Bathrooms are located near several aid stations. Check out the aid station chart for all the details!

Drop Bag

50 Mile athletes will have access to one drop bag two times at Aid Station 6.  Miles 18.6 and 34.1. 

Course Map

This is a course map on Strava. You can view the course and elevation, as well as download a GPX file from this link to use with your compatible GPS running watch.

Course Records

Overall course records are based on gun time; age group records are based on chip time.  Course record categories are based on award categories.

The STFU 50K and 50K Ruck are a nearly all-trail, two loop course at Sleepy Hollow State Park. The single track is not very hilly, but if it rains it can get very muddy. Overall this course is a great opportunity for first timer ultra trail runners, with an extremely well marked course, well stocked aid stations, a midway drop bag, and only 1100 ft of elevation gain over 50K.

Schedule

June 11th, 2027

Early Packet Pickup - 4:30-6:00 pm at Sleepy Hollow Park7835 E Price Road, Laingsburg, MI 48848
North Pavilion at the Beach Area - see the Athlete Guide for a map

June 12th, 2027 - Race Day!

• Packet Pickup & Ruck Weigh In Start - 6:00 am - 7:45 am
  • 5:30-6:00 am packet pickup is for 50 Milers & 50K Ruckers.
• 50K Ruck and 50K Early Start Time - 6:30 am (please note early start 50K athletes are not eligible for awards)
• Pre-Race Announcements - 7:20 am
• 50K, Half Marathon and Half Marathon Ruck Start Time - 7:30 am
• 5 Mile and 5 Mile Ruck Start Time - 8:00 am
• 5 Mile Award Time (estimated) - 9:30 am
• Half Marathon Award Time (estimated) - 10:30 am
• Course Closes - 6:45 pm

Cut Offs

The 50K course is open 7:30 am - 6:45 pm (11 hours, 15 minutes). 21:43/mile average pace.

The 50K Ruck course is open 6:30 am - 6:45 pm (12 hours, 15 minutes).  23:39/mile average pace.

There is a hard cut off at Aid Station 6, at mile 15.5, at 1:08 pm.

Aid Stations 3 and 4 are soft cut offs.  These soft cut offs are in place to keep you aware of the required overall average pace.  If you are falling far behind pace, and finishing the race would require you to run a large positive split, we may cut you off at this location.  You can view these on the aid station chart.

Aid Stations

There are 6 aid stations in the 50K that are passed twice for 12 stops total.  All aid stations have water and Tailwind, plus a mix of Hüma gels, salty + sweet snacks, trail mix, hummus wraps, pierogis, and more.  All aid stations have basic first aid, electrolytes, and feminine hygiene supplies.  Bathrooms are located near several aid stations. Check out the aid station chart for all the details!

Drop Bag

50K athletes will have access to one drop bag at Aid Station 6, Mile 15.5.

Course Map

This is a course map on Strava. You can view the course and elevation, as well as download a GPX file from this link to use with your compatible GPS running watch. 

Course Records

Overall course records are based on gun time; age group records are based on chip time.

Aid Stations locations and options available may be subject to change slightly due to course modifications and availability.

All stations will include water and Tailwind.

50 Mile and 50K runners and ruckers can stop at your car after Aid Station 6 before heading out on your second or third loop.  We specifically park you in the parking lot closest to this location; we'll have signs and staff directing you here on race day.

2026:  Aid Stations 3 and 4 are soft cut offs.  These soft cut offs are in place to keep you aware of the required overall average pace.  If you are falling far behind pace, and finishing the race would require you to run a large positive split, we may cut you off at this location.

You don’t have to be Martha Stewart with a megaphone—but if you’ve ever wanted an excuse to wear a tutu in the woods or blast 90s pop from a folding table, this is your permission.

None of this is required. You don’t need to buy anything or stress about decorations. But if going all-in sounds fun to you? We’re all for it. STFU runners and ruckers are out there pushing hard, and every funny sign, weird outfit, or cowbell cheer helps keep them moving.  Some runners will run straight through with just a quick “thank you.”  Others will become your new BFF.

We’ve put together some easy, fun ideas below to help you bring the energy—whether you’re Team Inflatable Dinosaur or just really good at yelling “WATER OR TAILWIND?” into a megaphone.

 

Aid Station Party Ideas: Make Your Stop the Most Memorable One on the Course

1. Pick a Theme:

• Luau: Grass skirts, leis, pineapple cups, beach vibes
• 80s Throwback: Neon everything, boom box with 80s jams
• Pirates: Eye patches, “ARRR you thirsty?” signs, gold coin candies
• Camping Crew: Flannel shirts, fake campfire, s’mores vibes
• Spa Station: Robes, cucumbers for eyes, offer a “hydration facial” (spritz of water)
• “We Trained for This” Tailgate: Lawn chairs, coolers (for snacks), and matching tees that say “Professional Enablers”

2. Dress Up:

• Costumes that match your theme
• Wigs, hats, tutus, matching team shirts, onesies, bandanas - whatever fits your vibe
• Temporary tattoos, face glitter, face paint

3. Sound Effects + Music:

• Cowbells and noisemakers
• Bluetooth speaker with an upbeat playlist - blasting “Eye of the Tiger,” “Run the World,” or dramatic opera
• Megaphone for dramatic encouragement (“You look amazing!” or “You outran a bear!”) - great for puns, motivation, or shouting made-up stats
• Group chants like “STFU!…and Run!”

4. Signs That Make Them Laugh:

• “Free pierogi if you smile”
• “You trained for this. Probably.”
• “Run now, STFU later.”
• “You’re not lost… probably.”
• “This is technically a good idea”
• “You’ve done worse things sober”
• “Trail mix fixes everything”
• “This is fine. Everything is fine.”
• “Worst parade ever.”
• “Run like your snacks depend on it”
• “This is basically a progressive dinner.”

5. Bonus Motivation:

• Bubbles
• Misting spray bottles if it's hot
• Display your own mini “leaderboard” of most entertaining runner quotes you hear throughout the race

6. Bring a Mascot:

• Inflatable dinosaur
• Cardboard cutout of Nicolas Cage or Chuck Norris (why not?)
• Giant stuffed animal dressed in running gear

7. Show the Love:

• Personalized cheers (“Looking good, bib 132!”)
• Yell bib numbers like it’s a game show
• Offer bad jokes, riddles, or “Would You Rather” questions as runners roll through
• Keep spirits high—people remember the fun
• Designate someone to be the “STFU Motivator” with a crown, cape, or clipboard

 

🚫 A Quick Note on Clean-Up:

Please no glitter, confetti poppers, or anything that leaves a mess behind. We love wild ideas, but we also love keeping the park clean and respecting the trails. Let’s make it weird and responsible.

 

This is your time to shine—make your aid station the most memorable stop on the course (besides the finish line). Runners may not remember their splits, but they will remember how hard they laughed when you told them to STFU and keep going.

Michigan

Mega Medal Series

Prove It 5K/10K:  April 18, 2026 at the GM Milford Proving Ground in Milford, Michigan

Trenton Summerfest Half Marthon, 8K, & 5K:  June 27, 2026 at Elizabeth Park in Trenton, Michigan

Dearborn Decades 5K:  August 9, 2026 at Ford Field Park in Dearborn, Michigan

Run the 313 5K:  August 22, 2026 at Palmer Park in Detroit, Michigan

Growler Gallop Atwater 10 Mile & 5K:  September 27, 2026 at Atwater Brewery in Detroit, Michigan

Black Toenail Friday Half Marathon & 7.5 Mile:  November 27, 2026 at Proud Lake Rec Area in Commerce Township, Michigan

 

Trail

Winter Trail Fest (WTF) East Half Marathon & 5 Mile:  February 14, 2026 at Island Lake Rec Area in Brighton, Michigan

Winter Trail Fest (WTF) West Half Marathon & 5 Mile:  February 21, 2026 at Yankee Springs Rec Area in Middleville, Michigan

Carpe Diem Carpe Noctem Morning & Evening Half Marathon & 10K:  April 11, 2026 at Proud Lake Rec Area in Commerce Township, Michigan

Summer Trail Fest Ultra (STFU) 50 Mile, 50K, Half Marathon, & 5 Mile:  June 13, 2026 Sleepy Hollow Rec Area in Laingsburg, Michigan

Moonlight Bootlegger 5k:  May 9, 2026 at Maybury State Park in Northville, Michigan

Wolverine State 100 100M, 100K, 100M Relay, & 50K:  October 10-11, 2026 from Petoskey to Alpena in Northern Michigan

 

Road

Thumb Coast Ultra & Relay 50M, 50K, & 50M Relay:  April 25, 2026 from Harbor Beach to Caseville in Michigan's Thumb

Rock CF Thumb Coast Marathon, Half Marathon, & 5K:  November 8, 2026 from Caseville to Port Austin in Michigan's Thumb

 

North Carolina

Road Mega Medal Series

Only Fools Run Half Marathon, 10K, & 5K:  March 28, 2026 at Jaycee Park in Greensboro, North Carolina

Pig Pounder Brewery 5K:  April 12, 2026 at the Pig Pounder Brewery in Greensboro, North Carolina

Elm Street Run Festival:  May 9, 2026 at LeBauer Park in downtown Greensboro, North Carolina

Greensboro Distilling Speakeasy 5k:  June 13, 2026 at Greensboro Distilling Co. and SouthEnd Brewing in Greensboro, North Carolina

Greensboro Half Marathon, 5K, & 1 Mile:  November 21, 2026 starting at Battleground Ave in Greensboro, North Carolina

 

Trail Mega Medal Series

Whiskey Tango Foxtrot Half Marathon & 5 Mile:  January 17, 2026 at Northeast Park in Gibsonville, North Carolina

Northern Trails 17 Mile, 10 Mile & 5 Mile:  March 7, 2026 at Northern Guilford High School in Greensboro, North Carolina

Owls Roost Rumble Half Marathon & 4 Mile:  April 25, 2026 at Bur-Mil Park in Greensboro, North Carolina

Triple Lakes Trail Race 40 Mile, Marathon, & Half Marathon: October 24, 2026 at Bur-Mil Park in Greensboro, North Carolina

Black Toenail Friday Half Marathon and 7.5 Miler: November 27, 2026 at Snow Camp, North Carolina

 

Multisport Mega Medal Series

Belews Lake Sprint Triathlon & Duathlon: April 18, 2026 at Belews Lake Marina in Stokesdale, North Carolina

Big Mack Sprint Triathlon:  June 20th, 2026 at Lake Cammack in Burlington, North Carolina

High Point Sprint Triathlon:  August 8, 2026 at Oak Hollow Marina in High Point, North Carolina

Belews Lake Olympic Triathlon & Duathlon:  September 12, 2026 at Belews Lake Marina in Stokesdale, North Carolina

Nat Greene's Revenge Triathlon & Duathlon: October 3, 2026 at Lake Brandt Marina in Greensboro, North Carolina

 

Multisport

Northeast Park Duathlon:  February 28, 2026 at Northeast Park in Gibsonville, North Carolina

 

Trail

Groundhog’s Lap Race: January 31, 2026 at Haw River State Park, North Carolina

Moonlight Bootlegger 5K:  May 2, 2026 at Hagan Stone Park in Pleasant Garden, North Carolina

Carpe Diem Carpe Noctem Morning & Evening Half Marathon & 10K:  September 12, 2026 at Hagan-Stone Park in Pleasant Garden, North Carolina

Pilot Mountain to Hanging Rock Ultra & Relay:  September 19, 2026 in Danbury, North Carolina

 

Road

Running of the Lights:  January 1st at Tanglewood Park in Clemmons, North Carolina

Blackbeard's Revenge 100 Ultra & Relay 100M, 100K, & 100M Relay:  March 21-22, 2026 in the Outer Banks in Corolla, North Carolina

 

Pennsylvania

End of the Road Half Marathon & One Tunnel 4 Mile:  October 24-25, 2026 on the old Pennsylvania Turnpike in Waterfall, Pennsylvania

 

West Virginia

Highball to Thurmond Ultra & Relay 50M, 50K, & 50M Relay:  May 17, 2026 in New River Gorge National Park, running from Montgomery to Thurmond, West Virginia

Check the Athlete Guide for helpful race details! This will be updated throughout the year with more details, especially as we get closer to race day. 

Updated 07/2/26 MW

 

We can only accommodate EIGHT CLUB TENTS at STFU.  The first eight clubs to reach 10+ members will receive club race day perks listed below.  This is due to the number of tents Trivium utilizes out on the race course for Aid Stations, etc.

If your team has 10+ members registered two weeks before race day, you’ll enjoy:

• A team tent set up by Trivium, featuring a banner with your club's name/logo
• Your registration packets, ready at the tent (skip packet pickup lines)
  • In order for your race packet (shirt, bib, etc.) to be pulled and available at your club tent, you must be registered as part of the club by the Monday before the race at 11:59 pm EST.
• Food, drinks, and goodies waiting for your team.

Check the Groups/Teams tab and see how many people your team currently has registered!  Questions about Club Benefits? Reach out to Megan at megan@triviumracing.com.

 

Summer Trail Fest Club Competition

• All clubs, regardless of size, are part of the club competition.
• Awards go to the winning club
• All finishes count toward the 2026 Trivium Club Cup Competition

How Club Scoring Works at STFU

• All finishers earn 1 point just for completing the race, so the more runners your team brings, the more you score.
• Age group placement earns additional points, with top finishers scoring up to 20 points (1st place) and down to 2 points (for 16th–20th).
• Overall podium winners (1st, 2nd, 3rd) earn double their age group points—for example, an overall 5 Mile winner scores 41 points!
• Volunteers are a huge part of race day too, earning 5 points each for their club.
• And because STFU has three distances, the 50K is worth 2x points and the Half Marathon is worth 1.5x points across the board—making it a huge opportunity to rack up a big score for your team.

 

2026 Trivium Racing Club Competition

• All clubs who compete also earn points toward the Overall, 2026 Trivium Club Competition
• The Overall season winner will be treated to a club party and receive the club cup to proudly display for the next year!
• Points will start at 500 for first place and decrease by 50 points for each placement. (1st = 500, 2nd = 450, 3rd = 400, etc.)
• Clubs placing 11 – 20 will receive 25 points.
• Club placing 21 and up will receive 10 points.

 

Check out the full club cup schedule and how points are earned here:  https://triviumracing.com/southeast-michigan-club-and-corporate-championship/.

 

Club Program

Love racing with your club/team with Trivium Racing?  Check out our Club Program!  Clubs receive a 10% discount code, a free race entry to raffle at run group, and can potentially partner to do more fun stuff!  Complete this form to request to participate.

Sleepy Hollow State Recreation Area
7835 E Price Rd, Laingsburg, MI 48848

Google Map link directly to parking lot:  https://maps.app.goo.gl/jsnSazZ5npU5eRVa6

There will be plenty of parking at the race start line. Follow the signs to the Beach Parking Area.  After entering the the park, you'll drive another mile North down State Park Drive.

Sleepy Hollow State Rec Area is part of the MI State Parks System and therefore requires a Recreation Passport for entry.

50 Mile and 50K runners and ruckers can stop at your car after Aid Station 6 before heading out on your second or third loop.  We specifically park you in the parking lot closest to this location; we'll have signs and staff directing you here on race day.

 

Late May, 2027 Date TBA

Virtual pre-race athlete meetings.  Meet with the Race Directors to talk aid stations, drop bags, course markings, cut off times, and have all your questions answered.

5 Mile & Half Marathon
RSVP & Submit Questions:  

Summer Trail Fest Athlete Meeting - 5 Mile & Half Marathon
Google Meet joining info

50K & 50 Mile
RSVP & Submit Questions:  

Summer Trail Fest Athlete Meeting - 50K & 50 Mile

Google Meet joining info

 

June 10th, 2027

• Early Packet Pickup at Running lab
  • Time TBA
  • 409 West Main Street, Brighton, MI 48116
  • We strongly encourage 50 Mile runners to utilize early packet pickup.

 

June 11th, 2027

• Early Packet Pickup - 4:30-6:00 pm at Sleepy Hollow Park
  • 7835 E Price Road, Laingsburg, MI 48848
  • North Pavilion at the Beach Area - see the Athlete Guide for a map
  • We strongly encourage 50 Mile runners to utilize early packet pickup.

 

June 12th, 2027 - Race Day!

• Packet Pickup & Ruck Weigh In Start - 5:30 am - 7:45 am
  • We strongly encourage 50 Mile runners to utilize Friday early packet pickup.
  • 5:30-6:00 am packet pickup is for 50 Milers & 50K Ruckers
• 50 Mile Start Time - 6:00 am
• 50K Ruck and 50K Early Start Time- 6:30 am
• Pre-Race Announcements - 7:20 am
• 50K, Half Marathon and Half Marathon Ruck Start Time - 7:30 am
• 5 Mile and 5 Mile Ruck Start Time - 8:00 am 
• 5 Mile Award Time (estimated) - 9:30 am
• Half Marathon Award Time (estimated) - 10:30 am
• 50 Mile & 50K athletes, please be aware of hard cut-off times listed in the Athlete Guide.
• 50 Mile & 50K awards will be presented on a rolling basis as athletes cross the finish line.
• Course Closes - 6:45 pm

Welcome to the Summer Trail Fest Ultra (STFU) 50 Mile, 50K, Half Marathon, and 5 Mile FAQ page. Whether you’re a first-timer, seasoned ultrarunner, or curious rucker, this guide covers everything you need to know before race day.

 
General Race Information

When is the race?

STFU takes place on Saturday, June 12, 2027, at Sleepy Hollow State Park in Laingsburg, Michigan.

What distances are offered?

• 50 Mile ultramarathon
• 50K ultramarathon (run or ruck)
• Half Marathon (13.1 miles) (run or ruck)
• 5 Mile (run or ruck)

What is a ruck division?

Ruckers carry a weighted pack or vest: 20 lbs if under 150 lbs bodyweight, 30 lbs if over 150 lbs.  50K, Half, and 5 Mile have ruck divisions. Learn more about rucking at GORUCK.

How do I register?

Register online!  On site race day registration is available but medals may not be available and shirt sizes may be limited.

Can I switch my race distance?  I'm supposed to run the 50K but I need to change to the Half Marathon.

You can switch your event registration by following these instructions.

Can I add or change the club/team I'm racing with?

Yes, just follow these instructions. If it's within two weeks of the race, and you were notified your team has VIP status, you need to email Megan at megan@triviumracing.com or your packet will not be pre-pulled.

How do I update my profile or emergency contact information?

Just follow these instructions.

Course & Cutoffs

What is the course like?

The course is 90% smooth, groomed trail with minimal technical terrain—perfect for beginners but still fast enough for veterans chasing a PR.

What are the cutoff times?

You can view the cut off times on the Aid Station Chart  and in the Athlete Guide.

What's the elevation like?

• 50 Mile: ~1,800 feet of gain
• 50K: ~1,100 feet of gain
• Half Marathon: ~500 feet of gain
• 5 Mile: ~132 feet of gain

Will the course be marked?

Yes. Trivium Racing is known for over-marked trails. Even if you’re pushing the pace, it’s very hard to get lost at STFU.  If you know you tend to stare at your feet, then just study the course markings in the Athlete Guide and pay attention to the awesome volunteers yelling directions!

Cani-cross will not be permitted at this event for any distance.

 

Aid Stations & Support

How many aid stations are there?

Check out the aid station chart for all the details!

• 5 Mile: 1 aid station
• Half Marathon: 5 aid stations
• 50K: 6 aid stations (passed twice = 12 stops total)
• 50 Mile:  6 aid stations (passed 3x = 18 stops total)

What’s at the aid stations?

Water and Tailwind, plus a mix of Hüma gels, salty + sweet snacks, trail mix, hummus wraps, pierogis, and more, dependent on the AS.  All aid stations have basic first aid, electrolytes, and feminine hygiene supplies.  Bathrooms are located near several aid stations.  Check out the aid station chart for all the details!

Do I need a crew?

No crew required! The aid stations provide everything you’ll need to finish strong and our volunteers are super supportive.

 

Post-Race

What happens after I finish?

STFU has one of the best post-race celebrations around:

• Cookout with burgers, hot dogs, drinks, and sides
• Spectator picnic passes available for purchase
• Chill at the beach, hang with your trail crew, and cheer for other finishers
• Last year we had massage therapists from Lansing Community College Massage Therapy School and lawn games, contests, and shoe demos with Altra Running and Running Lab Brighton!

Do I get a medal or swag?

Yes! Every finisher receives:

• A custom finisher medal that magnetically connects with the Winter Trail Fest East and West medal
• A technical tank/singlet
• Chip timing and live results by Trivium Racing
• Custom bumper sticker
• Awards for overall and age group winners

Check out this page for designs and more information.

We also offer an Economy Registration.  Skip the swag and save some cash!

 

Logistics

Where's the start line?  What address should I put into my Navigation System?

7835 E Price Rd, Laingsburg, MI 48848

Follow the signs to the Beach Parking Area.  You'll drive another mile North down State Park Drive and park at the Sleepy Hollow State Park Campground.

Where do I park?

Parking is available at Sleepy Hollow State Park very close to the start/finish line. Michigan Recreation Passport (State Park pass) required.

When should I arrive?

Plan to arrive at least 1 hour before your start time to allow for parking, bib pickup, the pre race meeting, and warm-up.

Is there race-day registration?

Yes, if spots remain, but we strongly recommend registering online before race week to guarantee your swag and medal.

 

Bundles & Discounts

What’s the WTF + STFU Bundle?

Register for both Winter Trail Fest (WTF) East or West Half Marathon and 5 Mile and Summer Trail Fest Ultra (STFU) and save 15% off each race. Even better: the medals magnetically connect into one giant piece.  Motivation to train through the winer, then carry that fitness into the summer!

If I'm already registered for one race.  Can I register for the bundle and still get the discount?

We don’t retroactively discount registrations, but we can offer you the 15% discount on the second registration.  Email Libby at libby@triviumracing.com.

 

Race Insurance

I can't attend the race but I purchased race insurance.  How do I make a claim?

Please see additional race insurance information here along with contact information: https://help.runsignup.com/support/solutions/articles/17000073422-claiming-event-insurance

 

Contact

I still have a question after reading all of this and the Athlete Guide.

No problem!  Email Hannah at hannah@triviumracing.com.

 

I don't think I'm getting your emails.

We send a comfortable amount of emails; we want our runners to be informed and safe.  If you haven't received one from us in over a month, especially if we're three months or less out from race day, you may be missing them.

• Have you checked your Spam folder?
• Have you check other folders your email provider "kindly" created for you and "conveniently" filters your mail into, like Promotions, Purchases, Updates, etc.?
• Have you added "noreply@runsignup.com" to your contacts?

If you've done all of this and want us to send you a test email, email Libby at libby@triviumracing.com.

 

The STFU Half Marathon is an awesome one loop Half Marathon at Sleepy Hollow State Park. The course is almost exclusively single track, and only 490 ft of elevation gain throughout. The trails are usually in superb condition, and make for a great early summer course. The course is well marked with turn signs at every turn, hanging tape every .1 miles, and surveyor flags at all open fields. The race has amazing aid stations that are well stocked and easy to access. Make this your summer trail half marathon!

Schedule

June 11th, 2027

Early Packet Pickup - 4:30-6:00 pm at Sleepy Hollow Park7835 E Price Road, Laingsburg, MI 48848
North Pavilion at the Beach Area - see the Athlete Guide for a map

June 12th, 2027 - Race Day!

• Packet Pickup & Ruck Weigh In Start - 6:00 am - 7:45 am
  • 5:30-6:00 am packet pickup is for 50 Milers & 50K Ruckers.
• 50K Ruck Start Time - 6:30 am (Note, aid stations may not be set up until the official race start)
• Pre-Race Announcements - 7:20 am
• 50K, Half Marathon and Half Marathon Ruck Start Time - 7:30 am
• 5 Mile and 5 Mile Ruck Start Time - 8:00 am
• 5 Mile Award Time (estimated) - 9:30 am
• Half Marathon Award Time (estimated) - 10:30 am
• 50K & 50K Ruck Cut-Off (15.5 Mile) - 12:40 pm
• Course Closes:  6:45 pm

Cut Offs

The Half Marathon course is open 7:30 am - 6:45 pm (11 hours, 15 minutes).  51:31/mile average pace.

Aid Stations

There are 5 aid stations in the Half Marathon.  All aid stations have water and Tailwind, plus a mix of Hüma gels, salty + sweet snacks, trail mix, hummus wraps, pierogis, and more.  All aid stations have basic first aid, electrolytes, and feminine hygiene supplies.  Bathrooms are located near several aid stations. Check out the aid station chart for all the details!

Course Map

This is a course map on Strava. You can view the course and elevation, as well as download a GPX file from this link to use with your compatible GPS running watch. 

Course Records

Overall course records are based on gun time; age group records are based on chip time.

All 50 Mile & 50K athletes may have pacers and crew. 

• No aid or pacing from moving vehicles or bicycles.
• Pacers are allowed from the beginning of the race on, but only one pacer is allowed at any given time.
• Pacers MUST wear a pacer bib (will be included with participant bib at packet pick-up) while on the course and pre-sign the waiver (available at the link below).
• Pacers, please be aware that the course fuel and food is for the athletes racing, while you are allowed to have some, please try to supply as much of your own as possible.
• If your athlete drops out of the race please follow proper procedure by checking in at the closest manned aid station and turning in their race bib.

All pacers must register here by race morning to receive a pacer bib. 

Summer Trail Fest Ultra offers a referral refund program. This is a fun & easy way to get your friends, teammates, family, or coworkers to sign up to race with you.  Bonus:  You get a little money back on your registration fee!

Referral Incentives

• 5 Mile Participants Refer 5 people who sign up to race and you get a $10 race registration refund
• Half Marathon & 50K Participants Refer 5 people who sign up to race and you get a $25 race registration refund
• 50 Mile Participants Refer 5 people who sign up to race and you get a $30 race registration refund

How does this work?

Share your specific referral code link that came in your original registration confirmation email.  Once you get the above-mentioned people to register using your code, you'll get your registration refund. Start sharing your link today!

You can also locate your personal referral link by clicking this link for instructions.  Questions?  Email Megan at megan@triviumracing.com.

Those wishing to race in the ruck category must provide their own pack/vest and weight. Ruckers and their packs/vests will both be pre-weighed 20 minutes prior to the race at the starting line.

• Ruckers Under 150lbs must have a pack/vest with 20 lbs
• Ruckers Over 150lbs must have a pack/vest with 30 lbs

Additional Rules:

• Ruck weight must be on the athlete at all times.
• No specific pack is required.
• Ruck weight may be a combination of the pack and the weight.
• Ruck weight may not be consumable

If you would like more information about rucking, click here.

 

 

Spectator Map

If your friends, family or crew want to come cheer for you or crew you on the course, here's a link to a helpful Google Map with seven different places they can reach you!  Click on each pin to read a description from the Race Director.  Bring a chair and a cooler, signs, cowbells - show these runners and ruckers some love and help them keep going!

Athlete Guide

Very detailed descriptions on pages 15-17.

 

2026 Spectator Map

Google My Map:  https://www.google.com/maps/d/u/0/viewer?mid=1GCVEZVGUQO0Im_vuZxyzx8es61NQ-_A&ll=42.93591644828659%2C-84.41371079999999&z=14

Easy way to look at the race courses and spectator locations.  You can use it in Google Maps on your phone to navigate from one location to the next, but you might lose the ability to do so if you lose service, even if you download the base map offline.

 

2026 Spectator Locations

Google Maps saved spectator locations list:  https://maps.app.goo.gl/imB2Ph9PyhNabdrCA?g_st=i

List of saved spectator location pins in Google Maps.  Best for use on race day to navigate in case of no cell service, but please read below:

 

Cell service can be limited in parts of Sleepy Hollow State Park.

Before race day:

• Open the STFU Spectator Locations pins list in the Google Maps app on your phone.
• Save the list
• In Google Maps, tap your profile picture → Offline Maps → Select Your Own Map.
• Download the Sleepy Hollow State Park area.
• Open the spectator locations once while you still have service so they are stored on your device.

On race day:

• Don't close the Google Maps app.
• In areas with limited connectivity, Google Maps may not always be able to start a new navigation route, even if you downloaded the offline map.

 

Spectator Lunch Ticket

If your friends, family, or crew want to eat with you at the post-race cookout, you can purchase them lunch tickets.  Tickets are $15 and include:

• Up to 2 hotdogs or 1 hamburger, hot off the grill
• Sides
• Beverage

Tickets can be purchased during registration.  If you're already registered and want to add a ticket you can do so in your RunSignup account following these instructions.

• Sign In to RunSignUp
• Go to your Profile
• View your events under Upcoming Events
• Click Manage Registration next to the registration that you are editing.
• Click Add-On menu item located on the top OR left of Race page
• Edit the quantity of the Add-On that you would like
• Click Continue  

 

50 Mile Standard Division

Awards for top three overall male, female, and non-binary finishers as well as top three males and females in the following age groups:

19 and under; 20-29; 30-39; 40-49; 50-59; 60-69; 70-79; 80+

50K, Half Marathon, and 5 Mile Standard Divisions

Awards for top three overall male, female, and non-binary finishers as well as top three males and females in the following age groups:

14 & under; 15-19; 20-24; 25-29; 30-34; 35-39; 40-44; 45-49; 50-54; 55-59; 60-64; 65-69; 70-74; 75-79; 80+

Ruck Divisions (all distances)

Awards for top 3 Male, Female, and Non-binary finishers

 

Overall awards are based on gun time.  Age Group awards are based on chip time.

Virtual participants will not be eligible for awards.

50K Early Start participants will not eligible for awards.

Awards not picked up on race day will be subject to a $10 shipping fee. Awards will only be mailed 2 weeks from the event date.

This race will be chip timed by Trivium Racing.

Thanks for running with us in spirit for this event! 

To complete your virtual race and receive your finisher medal and shirt, follow these steps:

• Run your half marathon or 50k at a place and time of your choosing.
• Track your time with a watch or fitness app (if using the RaceJoy app, see additional instructions on the main race page).
• Report your time on our results page by clicking "Submit Virtual Results" at the top of the page. Results can be submitted anytime between June 1st and June 13th. Don't forget to share your virtual race selfies too!

Shirts and finisher medals will be mailed within 10 days from the event. Please double check that your mailing address is correct on your registration before race day.  No packets will be available after June 13th. 

Virtual participants are not eligible for awards. An extra charge will be applied for international shipping. Contact us if you need a quote for international shipping.

Any changes to virtual on or after race day will be subject a shipping charge.

 

Regular Registration

• STFU singlet
  • Shirt size is not guaranteed within 2 weeks of race day. Shirt size availability is visible when registering.
• STFU finisher's medal
  • The STFU medal connects magnetically to our Winter Trail Fest Half Marathon and 5 Mile medal.  More below.
• "STFU and Run" sticker
• Post race cook out
  • Runners can purchase cook out tickets for spectators during registration and in your RunSignup account.  More information here.
• Traditional post-race food and drinks
• Chip timing with live results by Trivium Racing
• A chance to win awesome age group and overall awards

You have the option within Regular Registration to skip the singlet and save.  You'll see that option during registration on the screen on which you select your shirt size.  With this selection you'll still receive the medal, but no shirt.  Don't want a medal or shirt?  Check out Economy Registration.

Economy Package

• Chip timing with live results from Trivium Racing
• Post race cook out
• Traditional post-race food and drinks
• A chance to win awesome age group and overall awards
• "STFU and Run" sticker
• Custom race singlet
• STFU finisher's Medal 

Virtual Race

• STFU singlet  (Shirt size is not guaranteed within 2 weeks of race day. Shirt size availability is visible when registering.)
• STFU finisher's medal
• "STFU and Run" sticker
• Results included in virtual race leaderboard
• Packet available for pick up at race site or mailed (international shipping requests will incur additional shipping charges)

Trail Series

Winter Trail Fest Half Marathon & 5 Mile East or West + Summer Trail Fest Ultra

If you join us in February at Island Lake (East) or Yankee Springs (West) for Winter Trail Fest (WTF) Half Marathon or 5 Mile run or ruck, your 2026 WTF & STFU finisher medals connect!  Plus, if you register for the series you save 15%!

• WTF East February 13, 2027 · Island Lake Rec Area, Brighton, MI
• WTF West February 20, 2027 · Yankee Springs Rec Area, Middleville, MI

2026 Finisher's Medal

2027 designs coming soon.

The STFU & WTF medals connect magnetically back to back.  The back of the STFU medal has sparkly diamonds that fill in the holes of the WTF snowflake.

2026 Participant Shirt

 

5 Mile - Virtual: Singlet/Tank

5 Mile: Singlet/Tank

5 Mile: Singlet/Tank

5 Mile - Virtual: Singlet/Tank

5 Mile Ruck: T-Shirt

5 Mile Ruck: T-Shirt

Half Marathon - Virtual Race: Singlet/Tank

Half Marathon: Singlet/Tank

Half Marathon Ruck: Singlet/Tank

Half Marathon Ruck: Singlet/Tank

Half Marathon - Virtual Race: Singlet/Tank

Half Marathon: Singlet/Tank

50K: Singlet/Tank

50K - Virtual Race: Singlet/Tank

50K Early Start: Singlet/Tank

50K - Virtual Race: Singlet/Tank

50K: Singlet/Tank

50K Ruck: Singlet/Tank

50K Ruck: Singlet/Tank

50 Mile - Virtual Race: Singlet/Tank

50 Mile: Singlet/Tank

50 Mile: Singlet/Tank

50 Mile - Virtual Race: Singlet/Tank