Half Marathons within 100 miles of Oakland, CA
Morgan Hill, CA
Rancho Hills Trail Run
Oct 5, 2024
Rancho Hills Trail Run
Jul 5, 2025
Cool, CA
Heart of Cool
Oct 20, 2024
Sausalito, CA
Rodeo Beach Rumble
Apr 13, 2024
Rodeo Valley Trail Run
Aug 3, 2024
Golden Gate (Winter)
Feb 1, 2025
San Rafael, CA
China Camp Challenge
Jan 27, 2024
China Camp Trail Run
Jun 1, 2024
Honey Badger Half
Sep 22, 2024
Peacock Gap Trail Run
Dec 7, 2024
Sacramento, CA
Urban Cow Half Marathon
Oct 6, 2024
Oct 5, 2024
Jed Smith Ultra
Feb 1, 2025
Shamrock'n Half Marathon
Mar 16, 2025
Mar 15, 2025
American River Parkway Half Marathon
Apr 26, 2025
Fremont, CA
Coyote Hills Half Marathon
Jan 20, 2024
Western Pacific Half Marathon
Mar 30, 2024
Zoom Firecracker
Jul 6, 2024
Quarry Turkey Half Marathon
Nov 30, 2024
ZombieRunner Quarry Lakes Run
Dec 7, 2024
Fiercelifit Half Marathon & 10K/5K
Apr 12, 2025
Beer City Slam
Aug 16, 2025
Tiburon, CA
Angel Island
Jun 22, 2024
Angel Island Half Marathon
Aug 10, 2024
Hark the Herald Angels Half Marathon
Dec 14, 2024
Romancing the Island Half Marathon
Apr 12, 2025
Santa Rosa, CA
Beer City Half Marathon
Feb 22, 2025
Annadel Half Marathon
Apr 6, 2025
Santa Rosa Marathon
Aug 24, 2025
Aug 23, 2025
Berkeley, CA
Berkeley Trail Adventure
Sep 14, 2024
Berkeley Half Marathon
Nov 17, 2024
Grizzly Peak Trail Run
May 10, 2025
Granite Bay, CA
Lost Trail Half Marathon
Feb 22, 2025
San Jose, CA
Vibha Bay Area Dream Mile
Jun 2, 2024
South Hills Single Track Trail Run
Sep 14, 2024
Rock 'n' Roll San Jose
Oct 6, 2024
Oct 5, 2024
Mt. Umunhum Trail Conquest
Oct 12, 2024
Quicksilver Trail Challenge
Oct 26, 2024
Almaden Hills Trail Run
Nov 2, 2024
ZombieRunner Halloween
Nov 2, 2024
Zoom Turkey Trot
Nov 28, 2024
Calero Trail Run
Dec 7, 2024
Hacienda Hills Run
Jan 4, 2025
Mt. Umunhum Trail Conquest
Feb 1, 2025
Race to the Top of Mt Umunhum
Mar 8, 2025
South Hills Single Track Trail Run - Spring
Mar 22, 2025
Santa Teresa King Richard Annual Trail Run
Apr 5, 2025
Sierra Azul Trail Challenge
Apr 19, 2025
Hacienda Hills Run
May 3, 2025
13 Mile Trail Race Top Down
May 17, 2025
Beer City Half San Jose
May 31, 2025
Calero Trail Run
May 31, 2025
Mt. Umunhum Ultras
Jun 7, 2025
Calero Trail Hills Fest
Jul 26, 2025
Almaden Hills Trail Run
Aug 16, 2025
Petaluma, CA
Clo Cow Half Marathon
Sep 22, 2024
Stinson Beach, CA
Muir Woods Trail Run
Jul 13, 2024
Mt. Tam Trail Run
Nov 16, 2024
Stinson Beach Half Marathon
May 10, 2025
West Sacramento, CA
Beer City Half Sacramento
May 4, 2025
Mill Valley, CA
Headlands Half
Oct 5, 2024
Golden Gate Headlands Marathon
Apr 5, 2025
Mt. Tam Wild Boar Half Marathon
Apr 26, 2025
Pacifica, CA
Pacifica Foothills Trail Run
May 18, 2024
Pacifica Summit Run
Sep 28, 2024
Montara Mountain Trail Run
Feb 22, 2025
Ripon, CA
Ripon Turkey Trail Run
Nov 16, 2024
Walnut Creek, CA
Revel Mount Diablo
Mar 2, 2024
Diablo Trails Challenge
Apr 6, 2024
Diablo Summit Stomp
Oct 19, 2024
Folsom, CA
Brown's Ravine Half and Full Marathon
Apr 27, 2024
Folsom Lake Trail Run
May 4, 2024
Folsom Lake Sweetwater Trail Run
Jan 25, 2025
Folsom South Side Trail Run
Mar 15, 2025
Los Gatos, CA
Om Run
Apr 28, 2024
ICC Sevathon
Aug 25, 2024
Woodside, CA
Woodside Crossover
Apr 13, 2024
Crystal Springs
Sep 1, 2024
Woodside Ramble
Dec 21, 2024
Crystal Springs (Winter) Trail Run
Jan 12, 2025
Brentwood, CA
Delta Harvest Run
Sep 8, 2024
Roseville, CA
Santa Hustle
Dec 15, 2024
Clarksburg, CA
Clarksburg Country Run
Nov 10, 2024
Gilroy, CA
Mt. Madonna Challenge
Sep 7, 2024
San Francisco, CA
Lake Merced Half Marathon
Aug 11, 2024
San Francisco Giant Race
Aug 18, 2024
Run Against Breast Cancer 5K/10K/13.1 SAN FRANCISCO
Oct 12, 2024
Pinkathon Challenge for Breast Cancer
Oct 19, 2024
Golden Gate Half Marathon
Nov 3, 2024
San Francisco Half Marathon
Feb 2, 2025
Zoom San Francisco
Mar 15, 2025
San Francisco Marathon
Jul 27, 2025
Jul 26, 2025
Lafayette, CA
Bear Creek
Aug 10, 2024
Santa Cruz, CA
San Lorenzo River Trail Run
Jul 13, 2024
Santa Cruz Westside Half Marathon 10K/5K
Oct 12, 2024
Surfer's Path Half Marathon
Apr 27, 2025
San Ramon, CA
Rocky Ridge Trail Half Marathon
Sep 21, 2024
Auburn, CA
Sunset & Cider Trail Races
Sep 28, 2024
The Auburn Half Marathon
Oct 5, 2024
No Hands Trail Run
Jan 11, 2025
Knickerbocker Canyon Trail Run
Mar 22, 2025
Clayton, CA
Diablo Trail Run
Sep 8, 2024
Salinas, CA
Spartan Trail - Monterey
Jun 1, 2025
Calistoga, CA
Napa Wine Country Marathon
Oct 26, 2024
Napa Valley Marathon
Mar 2, 2025
Napa Valley Trail Marathon
Mar 22, 2025
Napa Valley Endurance Run
Apr 13, 2025
Palo Alto, CA
Moonlight Run & Walk
Sep 20, 2024
Rocklin, CA
Run Rocklin
Apr 14, 2024
Oakland, CA
Sasquatch Scramble
May 12, 2024
Oakland Hills Trail Run
Oct 26, 2024
Redwood (Spring) Trail Run
Mar 22, 2025
Oakland Marathon
Mar 23, 2025
Bay Bridge Half Marathon
May 4, 2025
Cinderella Trail Run
Jun 1, 2025
Redwood (Summer) Trail Run
Aug 16, 2025
Saratoga, CA
Trail Quake Half Marathon
Jun 8, 2024
Summit Rock Half Marathon
Dec 14, 2024
Sanborn Trail Challenge
Mar 1, 2025
Castro Valley, CA
The Rock the Loch 5K/10K/Half
Jul 7, 2024
Bad Bass Half Marathon
Jul 20, 2024
Lake Chabot
Nov 16, 2024
Brazen New Year's Eve
Dec 28, 2024
Brazen New Years Day Runs
Jan 1, 2025
Redtail Ridge
Feb 15, 2025
SPASM Lake Chabot
Apr 12, 2025
Lake Chabot Trail Challenge
Jun 1, 2025
Skyline 50K
Aug 3, 2025
Orinda, CA
Reservoir Dogs Trail Run
Jun 8, 2024
Healdsburg, CA
Lake Sonoma 50
Apr 12, 2025
Richmond, CA
Victory Race
Feb 24, 2024
El Sobrante, CA
Wildcat Half Marathon
May 18, 2024
Windsor, CA
Windsor Half Marathon
May 4, 2025
San Leandro, CA
Bay Breeze
Feb 10, 2024
Summer Breeze Half Marathon
Aug 3, 2024
Look Good Feel Good Race
Oct 5, 2024
Felton, CA
Santa Cruz Trail Run
Aug 24, 2024
El Dorado Hills, CA
Falcon Crest Winter Trail Challenge
Nov 16, 2024
Folsom Lake Trail Half Marathon
Dec 14, 2024
Folsom Lake Falcon Crest Trail Run
Mar 29, 2025
Tracy, CA
Cinco De Mayo Fiesta Run
May 5, 2024
San Juan Bautista, CA
Rotary Mission Ten
Jan 25, 2025
Half Moon Bay, CA
Half Moon Bay Pumpkin Run
Oct 20, 2024
Pumpkin Run
Oct 20, 2024
Cloverdale, CA
Cloverdale Vineyard Races
Oct 20, 2024
Sebastopol, CA
IPA10K, Brewfest & Beer Mile
Apr 20, 2024
Loomis, CA
Manda Run
Nov 24, 2024
San Pablo, CA
Nitro Trail Half Marathon
May 11, 2024
Loma Mar, CA
Groves Trail Run
Sep 7, 2024
Santa Venetia, CA
Rattlesnake Ramble
Mar 17, 2024
La Honda, CA
Horseshoe Lake
Apr 21, 2024
Briones Regional Park, CA
Armed Forces Half Marathon
May 25, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. Coyote Hills Half Marathon
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Past DateJan 20, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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Fremont, CA
23 miles point to pointAlameda County, CA
2. China Camp Challenge
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Past DateJan 27, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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San Rafael, CA
18 miles point to pointMarin County, CA
3. Bay Breeze
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Past DateFeb 10, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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San Leandro, CA
8 miles point to pointAlameda County, CA
4. Victory Race
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Past DateFeb 24, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Richmond, CA
10 miles point to pointContra Costa County, CA
5. Revel Mount Diablo
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Past DateMar 2, 2024Saturday
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13.1M run
More Information
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Walnut Creek, CA
13 miles point to pointContra Costa County, CA
6. Rattlesnake Ramble
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Past DateMar 17, 2024Sunday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Santa Venetia, CA
19 miles point to pointMarin County, CA
7. Western Pacific Half Marathon
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Past DateMar 30, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Boston Marathon Qualifier
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Fremont, CA
23 miles point to pointAlameda County, CA
8. Diablo Trails Challenge
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Past DateApr 6, 2024Saturday
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50K, 13.1M, 10K, 5K trail run
More Information
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Walnut Creek, CA
13 miles point to pointContra Costa County, CA
9. Rodeo Beach Rumble
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Past DateApr 13, 2024Saturday
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13.1M run | 8K trail run
More Information
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Sausalito, CA
12 miles point to pointMarin County, CA
10. Woodside Crossover
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Past DateApr 13, 2024Saturday
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50K, 35K, 13.1M, 10K trail run
More Information
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Woodside, CA
26 miles point to pointSan Mateo County, CA
11. Run Rocklin
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Past DateApr 14, 2024Sunday
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13.1M, 12K, 5K run
More Information
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Rocklin, CA
88 miles point to pointPlacer County, CA
12. Badger Cove Half Marathon
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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Livermore, CA
28 miles point to pointAlameda County, CA
13. IPA10K, Brewfest & Beer Mile
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 3K run | 1M novelty run
More Information
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Sebastopol, CA
51 miles point to pointSonoma County, CA
14. Horseshoe Lake
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Past DateApr 21, 2024Sunday
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50K, 26.2M, 30K, 13.1M, 5M trail run | kids run
More Information
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La Honda, CA
34 miles point to pointSan Mateo County, CA
15. Brown's Ravine Half and Full Marathon
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Past DateApr 27, 2024Saturday
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26.2M, 13.1M trail run
More Information
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Folsom, CA
84 miles point to pointSacramento County, CA
16. Om Run
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Past DateApr 28, 2024Sunday
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13.1M, 10K, 5K run
More Information
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Los Gatos, CA
43 miles point to pointSanta Clara County, CA
17. Folsom Lake Trail Run
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Past DateMay 4, 2024Saturday
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50K, 30K, 13.1M, 10K trail run
More Information
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Folsom, CA
84 miles point to pointSacramento County, CA
18. Cinco De Mayo Fiesta Run
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Past DateMay 5, 2024Sunday
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13.1M, 10K, 5K run
More Information
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Tracy, CA
45 miles point to pointSan Joaquin County, CA
19. Mermaid Run Mare Island
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Past DateMay 11, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Women Only
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Vallejo, CA
21 miles point to pointSolano County, CA
20. Nitro Trail Half Marathon
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Past DateMay 11, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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San Pablo, CA
12 miles point to pointContra Costa County, CA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.