Upcoming Half Marathon Races Near Santa Clara County, CA

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

Castro Valley, CA

Friday, June 26th, 2026

5K

10K

Half

Trail

View details for race The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual)

San Lorenzo River Trail Run

Santa Cruz, CA

Saturday, July 11th, 2026

Half

Ultra

Marathon

Trail

View details for race San Lorenzo River Trail Run

Beer City Half™ Alameda

Alameda, CA

Saturday, July 11th, 2026

Half

10K

5K

View details for race Beer City Half™ Alameda

Bad Bass

Castro Valley, CA

Saturday, July 18th, 2026

Half

View details for race Bad Bass

Summer Breeze

San Leandro, CA

Saturday, August 1st, 2026

5K

10K

Half

View details for race Summer Breeze

Redwood (Summer) Trail Run

Oakland, CA

Saturday, August 15th, 2026

Half

Ultra

Marathon

Trail

View details for race Redwood (Summer) Trail Run

Beer City Half™ SLAM

Fremont, CA

Saturday, August 15th, 2026

Half

10K

5K

View details for race Beer City Half™ SLAM

Santa Cruz Trail Run

Felton, CA

Saturday, August 22nd, 2026

Half

10K

Trail

View details for race Santa Cruz Trail Run

SPASM Crystal Springs Trail Run

Woodside, CA

Saturday, August 29th, 2026

10K

Half

Marathon

View details for race SPASM Crystal Springs Trail Run

Beer City Half™ Bishop Ranch

San Ramon, CA

Saturday, September 12th, 2026

Half

10K

5K

View details for race Beer City Half™ Bishop Ranch

Rocky Ridge

San Ramon, CA

Saturday, September 19th, 2026

10K

5K

Half

View details for race Rocky Ridge

Alameda Island Running Festival

Alameda, CA

Sunday, September 20th, 2026

Half

10K

5K

View details for race Alameda Island Running Festival

Peace Officer Memorial Run

Modesto, CA

Sunday, October 4th, 2026

Half

5K

View details for race Peace Officer Memorial Run

ZombieRunner Halloween

San Jose, CA

Saturday, October 31st, 2026

5K

10K

Half

Trail

View details for race ZombieRunner Halloween

Lake Chabot Trail Run

Castro Valley, CA

Saturday, November 7th, 2026

Half

Ultra

Marathon

Trail

View details for race Lake Chabot Trail Run

ZombieRunner Quarry Lakes

Fremont, CA

Saturday, November 14th, 2026

5K

10K

Half

Trail

Fast

View details for race ZombieRunner Quarry Lakes

Zoom Turkey Trot

San Jose, CA

Thursday, November 26th, 2026

5K

10K

Half

Trail

View details for race Zoom Turkey Trot

Crystal Springs Trail Run

Woodside, CA

Sunday, January 17th, 2027

Half

Marathon

Ultra

Trail

View details for race Crystal Springs Trail Run

Redwood (Spring) Trail Run

Oakland, CA

Saturday, March 20th, 2027

Half

Marathon

Ultra

Trail

View details for race Redwood (Spring) Trail Run

Horseshoe Lake Trail Run

Los Gatos, CA

Saturday, April 17th, 2027

1 Mile

Half

Ultra

View details for race Horseshoe Lake Trail Run

SPASM Lake Chabot Trail Run

Castro Valley, CA

Saturday, April 24th, 2027

Half

Marathon

Ultra

Trail

View details for race SPASM Lake Chabot Trail Run

Beer City Half™ San Jose

San Jose, CA

Saturday, May 29th, 2027

Half

10K

5K

View details for race Beer City Half™ San Jose

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