Trail Runs in California — 2026

There are 41 trail runs in California scheduled for 2026. The next is the Griffith Park Trail Marathon Relay & 8K in Los Angeles on June 7. California trail runs run primarily June through April.

Griffith Park Trail Marathon Relay & 8K

Sun, Jun 7 · Los Angeles, CA Los Angeles

Griffith Park 8KMarathon Relay Team (up to 5)

From $45 Open Closing Soon

Register →

2026 Lake Chabot Trail Challenge (Half Marathon & 5K)

Sun, Jun 7 · Castro Valley, CA Castro Valley

5K RunHalf Marathon

From $40 Open Closing Soon

Register →

Bizz Johnson's Southside Scramble

Sat, Jun 20 · Susanville, CA Susanville

Hobo Special 7KTunnel's Blast 14KDirty Devil's 22K

From $40 Open

Register →

The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual)

Fri, Jun 26 · Castro Valley, CA Castro Valley

The Rock the Loch Half Marathon (LIVE)The Rock the Loch Half Marathon (VIRTUAL)The Rock the Loch 10K (VIRTUAL) +3

From $30 Open

Register →

Chingona Fest

Sat, Jun 27 · Pearblossom, CA Pearblossom

6 Hour Run

From $111 Open 74 spots left

Register →

San Lorenzo River Trail Run

Sat, Jul 11 · Santa Cruz, CA Santa Cruz

10KHalf MarathonMarathon +2

From $60 Open

Register →

SAR Wild Run

Sun, Aug 9 · Shaver Lake, CA Shaver Lake

2M Hike5k Trail Wild Run10k Trail Run +2

From $50 Open Closing Soon

Register →

Redwood (Summer) Trail Run

Sat, Aug 15 · Oakland, CA Oakland

5 mileHalf MarathonMarathon +2

From $60 Open

Register →

Santa Cruz Trail Run

Sat, Aug 22 · Felton, CA Felton

10kHalf Marathon30k

Closed

Register →

SPASM Crystal Springs Trail Run

Sat, Aug 29 · Woodside, CA Woodside

8KHalf Marathon35K +2

From $60 Open

Register →

Colby Mountain Trailfest

Sat, Sep 5 · Butte Meadows, CA Butte Meadows

5k12k24k

From $40 Open 50 spots left

Register →

Mammoth Bar Trail Runs

Sun, Sep 6 · Auburn, CA Auburn

10KHalf Marathon

From $49 Closed

Register →

Diablo Trail Run

Sun, Sep 6 · Clayton, CA Clayton

4 Mi10 MiHalf Marathon +2

From $50 Open

Register →

The Honey Badger Half (& 10K/5K)

Fri, Sep 11 · Santa Venetia, CA Santa Venetia

The Honey Badger Half MarathonThe Honey Badger Half Marathon VIRTUAL OPTIONThe Honey Badger 10K VIRTUAL OPTION +3

From $30 Open

Register →

Los Angeles Sunset Relays | 5K & Kid Run

Sat, Sep 12 · Los Angeles, CA Los Angeles

Kid RunLA Sunset Trail Relay - FIND ME A TEAM (Free Agent)Los Angeles Sunset 5K +2

From $14.5 Open

Register →

Cirque Series - Mt Baldy, CA

Sat, Oct 3 · Mt Baldy, CA Mt Baldy

Sport Division (beginner / intermediate)VolunteerPro Division +1

From $0 Open

Register →

Lake Hodges Trail Festival

Sat, Oct 17 · San Diego, CA San Diego

Kid's 1 Mile Fun RunStroller Trail 5k5k (Youth Under 19) +8

From $15 Open 40 spots left

Register →

Heart of Cool Trail Run

Sat, Oct 17 · Cool, CA Cool

5k Trail Run/Walk10k Run/WalkTrail Half Marathon

From $30 Open

Register →

The Jackalope Lope

Sat, Oct 17 · Redding, CA Redding

8.5 Mile20.5 Mile52k

From $65 Closed

Register →

SPACEROCK Trail Race

Sat, Oct 17 · Aqua Dulce, CA Aqua Dulce

5K10KHalf Marathon +1

From $70 Open Closing Soon

Register →

Fleet Feet Fall Classic - Trail October 18th, 2026

Sun, Oct 18 · Chico, CA Chico

4 Mile (Single Loop)4 Mile Endurance ChallengeFall Classic Half Marathon

From $40 Open

Register →

ZombieRunner Halloween

Sat, Oct 31 · San Jose, CA San Jose

5K (12 yo & under)5K (13 - 17 yo)5K +5

From $25 Open

Register →

Lake Chabot Trail Run

Sat, Nov 7 · Castro Valley, CA Castro Valley

5K8KHalf Marathon +3

From $25 Open 30 spots left

Register →

Catalina Island Half-Marathon & 10K

Sat, Nov 14 · Avalon, CA Avalon

Kids Fun RunCatalina Island 10KCatalina Island Half Marathon +1

From $20 Open Closing Soon 50 spots left

Register →

ZombieRunner Quarry Lakes

Sat, Nov 14 · Fremont, CA Fremont

5K (12 yo & under)5K (13 - 17 yo)5K +4

From $25 Open

Register →

Zoom Turkey Trot

Thu, Nov 26 · San Jose, CA San Jose

5K (12 yo & under)5K (13 - 17 yo)5K +4

From $25 Open

Register →

San Diego 50 & Trail Runs

Sat, Jan 9 · Escondido, CA Escondido

Elevated Youth 1 MilerStroller Trail 5kValley 5M (Youth Under 19) +7

From $15 Open

Register →

Crystal Springs Trail Run

Sun, Jan 17 · Woodside, CA Woodside

8KHalf Marathon35K +2

From $60 Open

Register →

Hollywood Sign Run | Hike - 8M | 8K | 5K | Kid

Sun, Jan 24 · Los Angeles, CA Los Angeles

P-2.2K Kid RunGriffith Park 5K Trail ChallengeMt Hollywood 8K +1

From $22 Closed 55 spots left

Register →

Golden Gate Trail Run

Sat, Feb 6 · Sausalito, CA Sausalito

8KHalf MarathonMarathon +2

From $60 Open 50 spots left

Register →

Montara Mountain Trail Run

Sat, Feb 20 · Pacifica, CA Pacifica

10K10KHalf Marathon +7

From $60 Open

Register →

FOURmidable

Sat, Feb 20 · Auburn, CA Auburn

FOURmidable 13kFOURmidable 13kFOURmidable Half Marathon + +5

From $40 Open

Register →

Zoom Angel Island

Sun, Feb 28 · Tiburon, CA Tiburon

5 mi5 mi10 mi +3

From $60 Open

Register →

Zoom San Francisco

Sat, Mar 13 · San Francisco, CA San Francisco

5K (13 - 17 yo)5K (13 - 17 yo)5K (12 yo & under) +11

From $25 Open

Register →

Catalina Island Marathon, 10K, 5K

Sat, Mar 13 · Avalon, CA Avalon

Kids RunKids RunCatalina Island 5K +7

From $25 Open 30 spots left

Register →

Redwood (Spring) Trail Run

Sat, Mar 20 · Oakland, CA Oakland

5K5K (Accompanying Adults for Children)5mi (13 - 17 yo) +13

From $30 Open

Register →

VALENCIA Trail Race

Sat, Mar 20 · Valencia, CA Valencia

10K10KHalf Marathon +3

From $67 Open

Register →

Bedrock Valley Trail Runs

Sat, Apr 3 · Hemet, CA Hemet

Elevated Youth 1MElevated Youth 1MSOARING 5k +24

From $15 Open

Register →

Horseshoe Lake Trail Run

Sat, Apr 17 · Los Gatos, CA Los Gatos

5 mi5 miHalf Marathon +7

From $60 Open

Register →

SPASM Lake Chabot Trail Run

Sat, Apr 24 · Castro Valley, CA Castro Valley

5K8K8K +8

From $0 Open

Register →

No Foolin' Foot Race

Sat, Apr 24 · San Carlos, CA San Carlos

1K Kids Course1K Kids Course5K +5

From $20 Closed

Register →