Upcoming Ultra Races Near Castro Valley, CA

Run Tiburon UCSF Courage Over Cancer 10K & 5K

Belvedere Tiburon, CA

Sunday, September 7th, 2025

Horseshoe Lake Trail Run

La Honda, CA

Sunday, April 20th, 2025

Ride 4A Reason 2024

Oakland, CA

Saturday, April 26th, 2025

Grizzly Peak Trail Run

Berkeley, CA

Saturday, May 10th, 2025

Cinderella Trail Run

Oakland, CA

Sunday, June 1st, 2025

2025 San Francisco Marathon

San Francisco, CA

Saturday, July 26th, 2025

Redwood (Summer) Trail Run

Oakland, CA

Saturday, August 16th, 2025

Ruth Anderson Memorial Endurance Run

San Francisco, CA

Saturday, October 11th, 2025

Lake Chabot Trail Run

Castro Valley, CA

Saturday, November 8th, 2025

ZombieRunner Quarry Lakes

Fremont, CA

Saturday, December 6th, 2025

New Year's One Day

San Jose, CA

Wednesday, December 31st, 2025