All-Out Dog Days
When is All-Out Dog Days?
All-Out Dog Days takes place on Saturday, July 11, 2026 in Westminster, CO.
What distances does All-Out Dog Days offer?
All-Out Dog Days offers 6 events: 5K, VIRTUAL 5K, 10K, VIRTUAL 10K, Half Marathon, VIRTUAL Half Marathon.
| Event | Distance | Price | |
|---|---|---|---|
| 5K | 5.0 km | $35.00 | Register |
| VIRTUAL 5K | 5.0 km | $30.00 | Register |
| 10K | 10.0 km | $45.00 | Register |
| VIRTUAL 10K | 10.0 km | $35.00 | Register |
| Half Marathon | 13.1 mi | $65.00 | Register |
| VIRTUAL Half Marathon | 13.1 mi | $45.00 | Register |
How much does All-Out Dog Days cost?
Registration for All-Out Dog Days starts at $25.00. Prices vary by event distance.
Where is All-Out Dog Days held?
All-Out Dog Days is held in Westminster, CO at 10170 Church Ranch Way.
About All-Out Dog Days
Get ready for a sun-soaked adventure and a fantastic mid-season challenge with our 13th Annual Dog Days 5K, 10K & Half Marathon, benefiting Do Over Dogs! Held in a central location between Denver and Boulder, our courses wind northeast along the scenic Big Dry Creek Trail. As you run, you’ll enjoy breathtaking views of the Flatirons on the horizon. Our trail is perfect for dogs, featuring a generous amount of soft surface along the 10K and half marathon routes. Plus, we have a special dog division to award the fastest pups at each distance and a dog-themed costume contest for extra fun! And continue the challenge by participating in the endless series counterpart, Fa La La, in December.
Athlete details
We're looking forward to this race in the dog days of summer!
We're looking forward to seeing you at Dog Days on July 13 in Westminster, CO! Here's all the details that you need for a safe and fun event, please read them all the way through!
Packet pickup
- Early packet pickup is Thursday, 4:30-6:30p at Road Runner Sports, 110442 Town Center Dr #300, Westminster, CO 80021 click here for directions
- Half marathon packet pickup opens race morning at 6:15a and closes at (no exceptions)
- 6:50 for half marathon
- 7:20 for 10K
- 7:30 for 5K
- You do not need an ID to pick up your packet, or the packet of your friend/spouse/etc. Just give us names!
Parking and directions
- Directions: The Church Ranch Office Park is located at 10170 Church Ranch Wy in Westminster, CO. From US36 you'll go southwest on Church Ranch Blvd, then east on 103rd Ave and south on Church Ranch Wy to find the venue on the east side of the street. Click here for a map or to get directions.
- Parking: Athletes & spectators will be asked to park in the lots north and east of the office building, or around of the office building across the street. Please do not park at the school, hotels, or bank, on the street, or behind the office building. Please see the parking map and follow all parking signs on race day.
Pre-race
- The venue and expo will open at 6:15a
- If you'd like to participate in the informal dog-themed costume contest, make sure to get your picture taken at the awards tent pre-race (winners will be emailed)
- We do have a gear check in the venue, next to meal. And we will collect items dropped on the course to return to the gear check (see more details below)
- Our expo partners will be available for you pre-race and post-race
Race starts
- If you are running with your dog and wish them to be eligible for the dog division award, make sure we place a green flag on your lead
- Bibs must be on your outer-most layer and visible
- Please line up in the corral based on your expected pace (those going for the course record in the front to walkers in the back)
- Note that we will be using chip timing, so even if someone never passes you on the course, they may have a faster time
- Start times. If you are late, you will be asked to downgrade distance or will not be allowed to run on course with a bib as part of the event (this is for your safety on course)
- Half: start at 7:00, all must start by 7:05a
- 10K: start at 7:30, all must start by 7:35a
- 5K: start at 7:40, all must start by 7:45a
Heat safety
- The current forecast for race day is to be quite hot by mid-day and this course has little to no shade
- Race morning, we will have on display the predicted temps for each hour of the event
- If you have a slower pace and you will likely be on course during the hottest hours, please review these temperatures and make a judgement for your heat safety and change your distance if needed
- At every aid station, we will have water and Gatorade for you
- At the finish, we will have a cooling towel and ice-cold water and Gatorade for you
- Please be aware of the signs of heat stress and notify any course volunteer if you do not feel well
Course safety
- Ensure your bib is always visible and on your front, this is for your on-course safety and also for identifying photographs of you on course
- Make sure you are familiar with your course and aid stations from our course details page. We have water, Gatorade, Gu energy gels, and Superganix CBD Relief Balm at every aid station
- We have bright green course signs with blue arrows, course markings on the ground with bright green tape, and course volunteers at key locations to help guide you
- We have orange discs to block where you shouldn't go. Don't go through, around, over, or past any orange disc, or you will be off-course
- It is important if you choose to shorten your distance during the event, notify course volunteers as soon as possible and the timer as soon as you cross the finish line
- You can drop items at any aid station, and we will attempt to get your items back to the venue as soon as possible and they will be at the Gear Check tent. If you cannot wait for your item, email after the event and we can mail your gear (with paid shipping) or hold it until your next event. Best practice: put your name in your gear
- Dogs are loved, especially at this event! We have dog bowls at every aid station and the finish line, and dog treats at the meal tent. Make sure to use short leashes while on course. Be aware that the course is generally concrete and soft surface, but there is a 0.35 mi segment of black asphalt road east of Aid 1 (with a grass/dirt shoulder). Be careful of paws in the heat!
Post-race
- NEW we will not have computers at the timing tent to look up results, be sure to sign up for results notifications or have a mobile device to look up your results with the QR codes posted in the venue
- We offer results notifications that will send your results straight to your phone, Click the Event Info>Confirm my Registration menu option to sign up
- We offer FREE medal engraving!
- Stop by the meal tent for post-race goodies, including fruit, warm breakfast burrito, and chocolate milk (post-race goodies are for athletes only)
- If you've run Dog Days before, make sure to stop back by the registration tent to get your brag tag!
- Visit all of our wonderful partners in the expo, including bodywork, Superganix CBD balm samples, and other great goods and services
- Use the coupon code on your bib by 7/20 to receive $5 off any and all events on the All-Out calendar
Award ceremony
- 5K award ceremony: 8:15
- 10K award ceremony: 8:45
- Half marathon award ceremony: overall 8:45, division 9:15
- The top 3 finishing dogs will receive an award and medal during the division awards for each distance
Online photos and results
- Online results, searchable and sortable, will be available during the event
- Online photos, with free downloads, will be posted by Tuesday, 7p
Course details
10170 Church Ranch Wy, Westminster, CO 80021
5K course(23% asphalt/77% concrete) | Download/elevation profile |
| 5K athletes will leave the office parking lot to head west on Big Dry Creek Trail for 1.55 miles. After turning around, return the way they came on this out & back course. 2 opportunities to fuel up (+2 toilets). | |
| Male record: Will Lear, 2021 Fallfest 15:56 (5:08) Female record: Caroline Wool, 2022 Beat the Heat 19:20 (6:14) Course average: 37:38 (12:08) Avg. # of athletes: 114 | |
10K course(27% soft surface/11% asphalt/62% concrete) | Download/elevation profile |
| 10K athletes will start out heading west on Big Dry Creek Trail toward Standley Lake Regional Park. At about 2.3 miles athletes will begin 0.8 miles of the gravel trail & road system within the park. After turning around, return the way they came on this out & back course. 4 opportunities to fuel up (+ 2 toilets). | |
| Male record: Jason Chari, 2024 Beat the Heat 41:52 (6:44) Female record: Barbara Peterson, 2024 Beat the Heat 51:52 (8:21) Course average: 1:06:31 (10:36) Avg. # of athletes: 78 | |
Half marathon course(45% soft surface/5% asphalt/50% concrete) | Download/elevation profile |
| Half marathon athletes will start out heading west on Big Dry Creek Trail toward Standley Lake Regional Park. At about 2.3 miles athletes will begin 4 miles of the gravel trail & road system within the park, including the spectacular views along a north/south dogleg near the dam, then exit the park to continue west toward the south trailhead and the turnaround. As they return the way they came, athletes will skip the dogleg, return to Big Dry Creek Trail and head straight for the finish. 8 opportunities to fuel up (+4 toilets). | |
| Male record: Jason Zhang, 2024 Beat the Heat 1:27:28 (6:41) Female record: Ronnie Pedersen, 2024 Beat the Heat 1:39:35 (7:36) Course average: 2:21:50 (10:50) Avg. # of athletes: 93 | |
Aid Stations

Aid stations have Superganix samples on-demand and will feature Gatorade (lemon-lime, orange, or fruit punch) and Gu energy gels in raspberry lemonade
Heat Safety
We want to make sure you participate in our summer events with confidence. Here's what we do to keep you safe when the heat is high:
- We start the half marathon at 7a, the earliest possible under our permit.
- We have aid stations every 1.5 miles or less, even for the 5K athletes—5K athletes have 2 aid stations visits!
- Our on-course aid stations provide room-temperature water and Gatorade to all athletes, even the 5K.
- As soon as you finish, you will be provided a cool water and Gatorade (no waiting in line for this!). We also have ice-cold cooling towels on demand.
- Additional water and chocolate milk are available at the meal tent when you get your nutrition.
- We have moved up the award ceremonies and made the prizes a lottery so that you don't have to wait around if you don't want to.
- We didn't forget about your pups! We have dog water at every aid station and the finish line, and a pool for the pups to cool their paws at the finish line.
Directions & Parking
Directions: The Church Ranch Office Park is located at 10170 Church Ranch Wy in Westminster, CO. From US36 you'll go southwest on Church Ranch Blvd, then east on 103rd Ave and south on Church Ranch Wy to find the venue on the east side of the street. Click here for a map or to get directions.
Parking: Athletes & spectators will be asked to park in the lots north and east of the office building, or around of the office building across the street. Please do not park at the school, hotels, or bank, on the street, or behind the office building. Please see the parking map below and follow all parking signs & staff direction on race day.

Features & SWAG
| ♦ RRCA Certified Race Director—Organization you can count on! With hundreds of events under the belt of our director and a staff with 25+ years experience, your event will run smoothly. (Ha! No pun intended) | ![]() |
| ♦ Early AND Race Day Packet Pick-Up—For those who like to prep in advance! But no worries if you wait until race day... we make it quick & easy. | |
| ♦ Race Shirts—The one you'll want to wear EVERY day! Fit-specific and poly for those moisture wicking properties, but with a touch of cotton for extreme comfiness. | |
| ♦ Finisher Medals—Custom molded for all, including the 5K! With full-color ribbons... SO fancy! | |
| ♦ Brag Tags—For all repeat finishers! Our little way of saying 'Thanks for making Dog Days a tradition!' | |
| ♦ Souvenir Race Bibs—Event specific and personalized! Personalized for all who register at least 2 weeks in advance... yet another keepsake to remember your day! | |
| ♦ Custom Distance Sticker—Share your accomplishment! Stick 'em on your car, water bottle, or bulletin board proudly! | |
| ♦ FREE Race Pics—Unlimited downloads are on us! Professional photographers at the finish line AND on course... enjoy! | |
| ♦ Gear Check—No trips back to the car for our athletes... no need! Leave it with us... we'll keep an eye on it for you. | |
| ♦ Toilets-A-Plenty—3 Units for 500 people? What, are you crazy? Ever had to run without using a restroom because the lines were too long? Us too... ouch! We provide more than TRIPLE the facilities as other events, plus multiple units on-course! | |
| ♦ Accurately Measured Courses—Race the distance you trained for! Not a little more and not a little less... we measure each course no fewer than 3 times before race day and mark them so they're crystal clear. | |
| ♦ Medical Support—Nothing is more important than your safety! Here's hoping those guys are really bored, but just in case... you'll find our med crew both at the start/finish AND on course. Plus, each and every volunteer you pass knows who to call for help. | |
| ♦ Tons of Aid Stations—No need to carry any extra weight! Not only will both water & electrolytes be handed to you at the finish line, course aid stations are an average of just 1.2 miles apart. And cups-a-plenty, no need to deal with the hassle of cupless! | |
| ♦ Disposable Timing Chips—No hassle at the finish line! And no fees if you forget to return your timing chip either... we don't need it back. | |
| ♦ Electronic Results—No more endless sheets of data to sort through! All results scroll on easy-to-read computer screens in the expo area during the event and are posted online by the end of the day. | |
| ♦ Post-Race Meal—Breakfast burritos, fruit, bagels & chocolate milk for all! Yup, even if you're dead last... we're not going anywhere until we cheer you in. | |
| ♦ 3 Deep Awards—Overall AND Divisions AND a DOG DIVISION each distance! Events small enough to stay friendly and personal give you a better chance of landing on the podium! | |
| ♦ Fun, theme-based costume contest! Make sure the official photographer snaps your pic and the best theme-based outfit (as determined by the race director) gets a 50% off coupon for a future event! |
![]() | As one of your vendors we hear from so many runners that you are one of the best race promoters to run for, and now I know why. Thank you so much for an amazing first 5K ever. Had a blast! ~Jim |
![]() | As a part of our first-of-its-kind race that doesn't end, (yes, it goes on and on my friend), run the same distance at back-to-back events to measure your progress on identical Endless Series courses. Prizes may be awarded to those who beat their previous time! More |
![]() | With about a gazillion reasons why you might not be able to join us on race day, we know you still want to race with your friends & family. Well, we've got your back! More |
Prizes
We still have the great 3-deep awards that you love, overall and divisions. The overall winners of each distance will receive prizes from All-Out or our partners. Then, all participants will be in the running for a drawing for a free registration for the distance you participated in. The winners will be randomly selected and notified via email the week after the event. More
Schedule
Thursday, July 11 | 4:30p-6:30p | Early packet pick-up Location: Road Runner Sports, 10442 Town Center Dr., Westminster click here for directions Road Runner Sports will donate $1 to Do Over Dogs for every packet picked up here! | ||
| Saturday, July 13 | 6:15a | Packet pick-up open | ||
| 6:50a | Half marathon pick-up/registration close | |||
| 7:00a | Half marathon start | |||
| 7:20a | 10K pick-up/registration close | |||
| 7:30a | 10K start/5K pick-up and registration close | |||
| 7:40a | 5K start | |||
| 8:15a | 5K awards ceremony | |||
| 8:45a | 10K/half overall awards ceremony | |||
| 9:15a | Half marathon division awards ceremony |




