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Trail Running Calendar near Livermore 2026-2027

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Explore the top trail runs near Livermore for 2026-2027! We've gathered 36 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

October 2026
Oct
3
Sa

Garin Park XC Challenge

Trail Run 5 km
21st Annual Garin Park XC Challenge at Garin Regional Park is a USATF Pacific Association cross country meet with about 5K courses featuring hills, scenic views, and a half mile flat finish.
Oct
10
Sa

Mountain Tiger Diablo

Trail Run 12 mi
A 12.4 mile loop from Mitchell Canyon to the Mount Diablo summit and back, with about 4,000 feet of elevation change, a 5 hour cutoff, and shuttle service.
Oct
10
Sa

Reservoir Dogs Trail Run - Orinda, CA

Trail Run 5 km 10 km 13 mi 35 km
Trail runs of 5K, 10K, half marathon and 35K around San Pablo Reservoir with chip timing, marked trails, cupless aid stations, and a 300 runner capacity.
Oct
17
Sa

Diablo Summit Stomp

Trail Run 5 km 10 km Half Marathon 30 km
Trail races on Mount Diablo in Walnut Creek on October 17, 2026 offering 30K, half marathon, 10K and 5K on hilly trails with possible mud and creek crossings.
Oct
17
Sa

Quicksilver Trail Challenge

Trail Run 10 km Half Marathon
Trail races at Almaden Quicksilver County Park offering a half marathon, 10K and kids 1 mile with historic mining views and local conservation support.
Oct
24
Sa

Oakland Hills Trail Run

Trail Run 10 km 13 mi 35 km
Trail races at Redwood Regional Park on October 24, 2026 with 35K, half marathon and 10K routes, chip timing, marked trails, cupless aid stations, and limited field size.
Oct
31
Sa

Zombierunner Halloween

Trail Run 2 mi 5 km ... 13 mi 26 mi
Celebrate Halloween with a trail race through San Jose Hellyer County Park. Choose from distances including 5K 10K Half Marathon and Marathon with costume prizes and certified courses.
Oct
31
Sa

Almaden Hills Trail Run - Fall

Trail Run 5 km 10 km ... Marathon 50 km
Trail races in Almaden Quicksilver Park from 5K to 50K over hilly dirt roads and single-track, with two staffed aid stations, drop-bag service for longer distances, and a finisher medal for all participants.
November 2026
Nov
1
Su

Oakland Tech 5km Fundraiser Race

Trail Run 5 km
A fundraiser in Joaquin Miller Park featuring a 5 km trail race and a 1 mile fun run to support Oakland Tech PTSA and student programs.
Nov
7
Sa

Lake Chabot Trail Run

Trail Run 2 mi 3 mi ... 26 mi 50 km
Experience a scenic trail run around the Lake Chabot reservoir and hills. With distances from a 50 yard kids dash to a 50K ultramarathon there is an option for everyone at this Castro Valley event.
Nov
14
Sa

Zombierunner Quarry Lakes

Trail Run 2 mi 5 km 10 km 13 mi
Experience a flat and fast trail race through the scenic Quarry Lakes Regional Recreation Area in Fremont. Choose from a USATF certified half marathon, 10K, or 5K while enjoying views along the Alameda Creek Trail.
Nov
26
Th

Zoom Turkey Trot

Trail Run 2 mi 5 km 10 km 13 mi
Celebrate Thanksgiving at Hellyer County Park with a trail race along Coyote Creek. Choose from a USATF certified half marathon, 10K, or 5K while competing for a chance to win a turkey.
Nov
26
Th

The Animal Run Tofurkey Trot

Trail Run 5 km
Thanksgiving Day 5K and canicross fundraiser at San Leandro Marina with races for adults and kids, vegan refreshments, and animal welfare fundraising.
Nov
28-29
Sa - Su

Quarry Turkey

Trail Run 5 km 10 km 13 mi
Quarry Turkey in Fremont offers a half marathon, 10K, 5K and a virtual race over Thanksgiving weekend, plus a Little Turkeys kids race and a food drive.
December 2026
Dec
5
Sa

Calero Trail Run - Winter

Trail Run 5 km 10 km ... Marathon 50 km
Trail races from a kids run to a 50K at Calero County Park in San Jose with varied single track, multiple aid stations, free parking, and drop bag support for the 50K.
Dec
6
Su

Oakland Cubs Back2School 5K

Trail Run 5 km
Dec
31
Th

Brazen New Year's Eve

Trail Run 5 km 10 km Half Marathon
New Year's Eve at Lake Chabot in Castro Valley offers trail races on December 31, 2026, with a half marathon, 10K and 5K; walkers and hikers are welcome and free photos are provided.
January 2027
Jan
1
Fr

Brazen New Year's Day

Trail Run 5 km 10 km 13 mi
Multi-distance trail races at Lake Chabot across New Year's Eve and New Year's Day, including 5K, 10K, a half marathon and a virtual option.
Jan
30
Sa

Coyote Hills Run

Trail Run 5 km 10 km Half Marathon
Scenic races at Coyote Hills Regional Park offering half marathon, 10K and 5K on varied surfaces with rolling bay views and stocked aid stations.
February 2027
Feb
6
Sa

Mt. Umunhum Trail Conquest - Winter

Trail Run 5 km 7 mi ... 26 mi 50 km
Trail race at Almaden Quicksilver Park offering distances from a kids run to 50K, out-and-back courses with marked trails, aid stations, and summit routes to Mt Umunhum.
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