This event is in the past.It took place on June 7, 2026 at Willows Picnic Area.
TrackTrack2026 Lake Chabot Trail Challenge (Half Marathon & 5K)
At Willows Picnic Area
Orinda
Lace up for the 42nd annual Lake Chabot Trail Challenge, where dirt fire roads wind through eucalyptus groves with ridge-line views of the lake and San Francisco Bay. Both the hilly Half Marathon and gentle 5K reward finishers with medals and bragging rights.
trail running event
chip-timed race
scenic lake views
hilly half marathon
Tips
⛰️1000 ft elevation gain on the Half Marathon
💧bring your own hydration, even with water stations
👕register by May 10 for guaranteed t-shirt size
2026 Lake Chabot Trail Challenge (Half Marathon & 5K)
At Willows Picnic Area
Orinda
TrackTrackLace up for the 42nd annual Lake Chabot Trail Challenge, where dirt fire roads wind through eucalyptus groves with ridge-line views of the lake and San Francisco Bay. Both the hilly Half Marathon and gentle 5K reward finishers with medals and bragging rights.
trail running event
chip-timed race
scenic lake views
hilly half marathon
Tips
⛰️1000 ft elevation gain on the Half Marathon
💧bring your own hydration, even with water stations
👕register by May 10 for guaranteed t-shirt size
Make it an outing
Add nearby spots before or after your event