61 Upcoming Half Marathon Races Near Santa Clara, CA

Most popular races in California →

Sat, Nov 73 races

Mermaid Trail Run - 2026 logo

Mermaid Trail Run - 2026

Woodside, CA

Half
Trail
View details for race Mermaid Trail Run - 2026
RunThrough San Francisco at Crissy Field 5k, 10k & Half Marathon logo

RunThrough San Francisco at Crissy Field 5k, 10...

San Francisco, CA

5K
10K
Half
Fast
View details for race RunThrough San Francisco at Crissy Field 5k, 10k & Half Marathon
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Lake Chabot Trail Run logo

Lake Chabot Trail Run

Castro Valley, CA

Half
Ultra
Marathon
Trail
View details for race Lake Chabot Trail Run

Sat, Nov 142 races

ZombieRunner Quarry Lakes logo

ZombieRunner Quarry Lakes

Fremont, CA

5K
10K
Half
Trail
Fast
View details for race ZombieRunner Quarry Lakes

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Berkeley Half Marathon 2026 logo

Berkeley Half Marathon 2026

Berkeley, CA

Half
5K
10K
View details for race Berkeley Half Marathon 2026

Thu, Nov 261 race

Zoom Turkey Trot logo

Zoom Turkey Trot

San Jose, CA

5K
10K
Half
Trail
View details for race Zoom Turkey Trot

Sat, Nov 281 race

Quarry Turkey logo

Quarry Turkey

Fremont, CA

5K
10K
Half
Fast
View details for race Quarry Turkey

Sat, Dec 123 races

2026 Hark the Herald Half Marathon & 10K logo

2026 Hark the Herald Half Marathon & 10K

Tiburon, CA

Half
10K
Trail
View details for race 2026 Hark the Herald Half Marathon & 10K
Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO logo

Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

5K
10K
Half
View details for race Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO
Summit Rock logo

Summit Rock

Saratoga, CA

5K
10K
Half
Trail
View details for race Summit Rock

Sat, Dec 261 race

A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO logo

A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO

San Mateo, CA

5K
10K
Half
View details for race A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO

Thu, Dec 311 race

Brazen New Year's Eve 2026 logo

Brazen New Year's Eve 2026

Castro Valley, CA

Half
5K
Trail
View details for race Brazen New Year's Eve 2026

Fri, Jan 1, 20272 races

Brazen New Year's Day logo

Brazen New Year's Day

Castro Valley, CA

5K
10K
Half
View details for race Brazen New Year's Day
Brazen New Year's Eve logo

Brazen New Year's Eve

Castro Valley, CA

5K
10K
Half
Trail
View details for race Brazen New Year's Eve

Sun, Jan 17, 20271 race

SPASM Crystal Springs Trail Run logo

SPASM Crystal Springs Trail Run

Woodside, CA

Half
Marathon
Ultra
Trail
View details for race SPASM Crystal Springs Trail Run

Sat, Jan 30, 20274 races

Coyote Hills logo

Coyote Hills

Fremont, CA

Half
10K
5K
View details for race Coyote Hills
Coffee Lovers Run SAN FRANCISCO logo

Coffee Lovers Run SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Coffee Lovers Run SAN FRANCISCO
Rotary Mission Ten - Half Marathon, 10 Mile and 5K logo

Rotary Mission Ten - Half Marathon, 10 Mile and 5K

San Juan Bautista, CA

Half
10 Miles
5K
View details for race Rotary Mission Ten - Half Marathon, 10 Mile and 5K
Run for Donut SAN FRANCISCO logo

Run for Donut SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run for Donut SAN FRANCISCO

Sat, Feb 6, 20271 race

Golden Gate Trail Run logo

Golden Gate Trail Run

Sausalito, CA

Half
Ultra
Marathon
Trail
View details for race Golden Gate Trail Run

Sat, Feb 13, 20272 races

Bay Breeze 2027 logo

Bay Breeze 2027

San Leandro, CA

Half
5K
10K
Trail
View details for race Bay Breeze 2027
Valentine's Day Run 5K/10K/13.1 SAN FRANCISCO logo

Valentine's Day Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

5K
10K
Half
View details for race Valentine's Day Run 5K/10K/13.1 SAN FRANCISCO

Sat, Feb 20, 20273 races

Victory 2027 logo

Victory 2027

Richmond, CA

Half
5K
10K
Trail
Fast
View details for race Victory 2027

Buzz Marathon #27

San Miguel, CA

Half
Marathon
10K
BQ
View details for race Buzz Marathon #27
Montara Mountain Trail Run logo

Montara Mountain Trail Run

Pacifica, CA

10K
Half
Marathon
Trail
View details for race Montara Mountain Trail Run

Sat, Feb 27, 20272 races

Run For Mental Health SAN FRANCISCO logo

Run For Mental Health SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run For Mental Health SAN FRANCISCO
Run Together Against Breast Cancer SAN FRANCISCO logo

Run Together Against Breast Cancer SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run Together Against Breast Cancer SAN FRANCISCO

Sat, Mar 13, 20271 race

Zoom San Francisco logo

Zoom San Francisco

San Francisco, CA

5K
10K
Half
Trail
View details for race Zoom San Francisco

Sun, Mar 14, 20271 race

Silicon Valley Half Marathon logo

Silicon Valley Half Marathon

San Jose, CA

Half
5K
Trail
View details for race Silicon Valley Half Marathon

Sat, Mar 20, 20272 races

Redwood (Spring) Trail Run logo

Redwood (Spring) Trail Run

Oakland, CA

Half
Marathon
Ultra
Trail
View details for race Redwood (Spring) Trail Run
2027 Oakland Marathon logo

2027 Oakland Marathon

Oakland, CA

Half
5K
Marathon
View details for race 2027 Oakland Marathon

Sat, Mar 27, 20273 races

SuperHeroes Run SAN FRANCISCO logo

SuperHeroes Run SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race SuperHeroes Run SAN FRANCISCO
Always Hope Easter Run SAN FRANCISCO logo

Always Hope Easter Run SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Always Hope Easter Run SAN FRANCISCO
Western Pacific 2027 logo

Western Pacific 2027

Fremont, CA

Half
5K
10K
Trail
View details for race Western Pacific 2027

Sat, Apr 3, 20272 races

Diablo Trails Challenge 2027 logo

Diablo Trails Challenge 2027

Walnut Creek, CA

Half
5K
10K
Trail
View details for race Diablo Trails Challenge 2027
2027 Golden Gate Headlands Marathon, Half Marathon & 10K logo

2027 Golden Gate Headlands Marathon, Half Marat...

Mill Valley, CA

Half
Marathon
10K
Trail
View details for race 2027 Golden Gate Headlands Marathon, Half Marathon & 10K

Sat, Apr 10, 20272 races

Run for PB&J 5k/10k/13.1 SAN FRANCISCO logo

Run for PB&J 5k/10k/13.1 SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run for PB&J 5k/10k/13.1 SAN FRANCISCO
2027 Romancing the Island Half Marathon & 10K logo

2027 Romancing the Island Half Marathon & 10K

Tiburon, CA

Half
10K
Trail
View details for race 2027 Romancing the Island Half Marathon & 10K

Sun, Apr 11, 20271 race

Beer City San Francisco logo

Beer City San Francisco

San Francisco, CA

Half
10K
5K
View details for race Beer City San Francisco

Sat, Apr 17, 20273 races

SPASM Lake Chabot Trail Run logo

SPASM Lake Chabot Trail Run

Castro Valley, CA

Half
Marathon
Ultra
Trail
View details for race SPASM Lake Chabot Trail Run
Badger Cove logo

Badger Cove

Livermore, CA

Half
10K
5K
View details for race Badger Cove
Alameda Island Running Festival logo

Alameda Island Running Festival

Alameda, CA

Half
10K
5K
View details for race Alameda Island Running Festival

Sun, Apr 18, 20271 race

Santa Cruz Westside Half Marathon 10k/5k logo

Santa Cruz Westside Half Marathon 10k/5k

Santa Cruz, CA

Half
5K
10K
View details for race Santa Cruz Westside Half Marathon 10k/5k

Sat, Apr 24, 20275 races

Mt. Diablo Half Marathon logo

Mt. Diablo Half Marathon

Walnut Creek, CA

Half
View details for race Mt. Diablo Half Marathon
Coffee Lovers Run SAN FRANCISCO logo

Coffee Lovers Run SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Coffee Lovers Run SAN FRANCISCO
Run for Donut SAN FRANCISCO logo

Run for Donut SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run for Donut SAN FRANCISCO
Horseshoe Lake Trail Run logo

Horseshoe Lake Trail Run

Los Gatos, CA

1 Mile
Half
Ultra
Trail
View details for race Horseshoe Lake Trail Run
2027 Mt. Tam Wild Boar Half Marathon & 10K logo

2027 Mt. Tam Wild Boar Half Marathon & 10K

Mill Valley, CA

Half
10K
Trail
View details for race 2027 Mt. Tam Wild Boar Half Marathon & 10K

Sat, May 8, 20272 races

Grizzly Peak Trail Run (Postponed until 2028) logo

Grizzly Peak Trail Run (Postponed until 2028)

Berkeley, CA

10K
Half
Ultra
View details for race Grizzly Peak Trail Run (Postponed until 2028)
Run for Chocolate 5k/10k/13.1 SAN FRANCISCO logo

Run for Chocolate 5k/10k/13.1 SAN FRANCISCO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run for Chocolate 5k/10k/13.1 SAN FRANCISCO
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