Available distances
About
Bear Creek - Orinda takes place on August 7, 2027, in Orinda, Contra Costa County, California, on the trails of Briones Regional Park. All three distances start at 7:30 a.m.: a half marathon of 21.4 km (13.3 mi), a 10K (6.3 mi) and a 5K (3.1 mi).
The East Bay hills are steep, grassy and almost entirely unshaded, which by August means dry, golden ground and a sun that arrives early. A 7:30 a.m. start gives you an hour of decent conditions before the exposure starts to bite, so run the first climbs deliberately and carry water even on the 10K.
Highlights
- Forest
- High altitude
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Races nearby
Other upcoming races around Orinda.
Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run
Dec 5, 2026 · Alameda, CA · 9 mi away
6.2 mi · 3.1 mi
Nitro Turkey Thanksgiving Day 10K / 5K
Nov 26, 2026 · Richmond, CA · 11 mi away
3.1 mi · 6.2 mi
Tim & Jeannie Hamann Foundation Benicia Hand Up Turkey Trot
Nov 26, 2026 · Benicia, CA · 11 mi away
2 mi
Concord 5000 - Presented by Diablo Valley Federal Credit Union
Feb 12, 2027 · Concord, CA · 11 mi away
5000 m
Concord California Turkey Trot 5K
Nov 26, 2026 · Concord, CA · 11 mi away
3.1 mi · 0.3 mi
Berkeley Half Marathon
Nov 15, 2026 · San Francisco, CA · 13 mi away
13.1 mi · 6.2 mi · 3.1 mi · 0.6 mi