78 Upcoming Half Marathon Races Near Brentwood, 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
Lake Chabot Trail Run logo

Lake Chabot Trail Run

Castro Valley, CA

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

Sat, Nov 142 races

Berkeley Half Marathon 2026 logo

Berkeley Half Marathon 2026

Berkeley, CA

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

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ZombieRunner Quarry Lakes logo

ZombieRunner Quarry Lakes

Fremont, CA

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

Sat, Nov 211 race

Davis Turkey Trot logo

Davis Turkey Trot

Davis, CA

5K
10K
Half
Fast
View details for race Davis Turkey Trot

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 51 race

Peacock Gap Trail Run logo

Peacock Gap Trail Run

San Rafael, CA

Half
Trail
Fast
View details for race Peacock Gap Trail Run

Sat, Dec 123 races

Summit Rock logo

Summit Rock

Saratoga, CA

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

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 Eve logo

Brazen New Year's Eve

Castro Valley, CA

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

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, 20276 races

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
Coyote Hills logo

Coyote Hills

Fremont, CA

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

Coffee Lovers Run SACRAMENTO

Sacramento, CA

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

Run for Donut SACRAMENTO

Sacramento, CA

5K
10K
Half
Fast
View details for race Run for Donut SACRAMENTO
Coffee Lover Run SACRAMENTO logo

Coffee Lover Run SACRAMENTO

Sacramento, CA

Half
5K
10K
View details for race Coffee Lover Run SACRAMENTO

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

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
Bay Breeze 2027 logo

Bay Breeze 2027

San Leandro, CA

Half
5K
10K
Trail
View details for race Bay Breeze 2027

Sat, Feb 20, 20273 races

Victory 2027 logo

Victory 2027

Richmond, CA

Half
5K
10K
Trail
Fast
View details for race Victory 2027
Montara Mountain Trail Run logo

Montara Mountain Trail Run

Pacifica, CA

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

Buzz Marathon #27

San Miguel, CA

Half
Marathon
10K
BQ
View details for race Buzz Marathon #27

Sat, Feb 27, 20274 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
Run For Mental Health SACRAMENTO logo

Run For Mental Health SACRAMENTO

Sacramento, CA

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

Run Together Against Breast Cancer SACRAMENTO

Sacramento, CA

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

Sun, Feb 28, 20271 race

Davis Stampede logo

Davis Stampede

Davis, CA

5K
10K
Half
Trail
Fast
View details for race Davis Stampede

Fri, Mar 12, 20271 race

The Rattlesnake Ramble 5K/10K/Half Marathon (live or virtual) logo

The Rattlesnake Ramble 5K/10K/Half Marathon (li...

Santa Venetia, CA

5K
10K
Half
Trail
View details for race The Rattlesnake Ramble 5K/10K/Half Marathon (live or virtual)

Sat, Mar 13, 20272 races

Zoom San Francisco logo

Zoom San Francisco

San Francisco, CA

5K
10K
Half
Trail
View details for race Zoom San Francisco
2027 Shamrock'n Weekend logo

2027 Shamrock'n Weekend

West Sacramento, CA

Half
5K
10K
View details for race 2027 Shamrock'n Weekend

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, 20275 races

SuperHeroes Run SACRAMENTO logo

SuperHeroes Run SACRAMENTO

Sacramento, CA

5K
10K
Half
Fast
View details for race SuperHeroes Run SACRAMENTO
Western Pacific 2027 logo

Western Pacific 2027

Fremont, CA

Half
5K
10K
Trail
View details for race Western Pacific 2027
Always Hope Easter Run SACRAMENTO logo

Always Hope Easter Run SACRAMENTO

Sacramento, CA

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

SuperHeroes Run SAN FRANCISCO

San Francisco, CA

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

Sat, Apr 3, 20272 races

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
Diablo Trails Challenge 2027 logo

Diablo Trails Challenge 2027

Walnut Creek, CA

Half
5K
10K
Trail
View details for race Diablo Trails Challenge 2027

Sun, Apr 4, 20271 race

Modesto Marathon logo

Modesto Marathon

Modesto, CA

Marathon
Half
10K
View details for race Modesto Marathon

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
Run for PB&J 5k/10k/13.1 SACRAMENTO logo

Run for PB&J 5k/10k/13.1 SACRAMENTO

San Francisco, CA

5K
10K
Half
Fast
View details for race Run for PB&J 5k/10k/13.1 SACRAMENTO
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