Hey Runners! So many races are being cancelled. postponed, rescheduled due to COVID-19, that we are unable to keep up. We are updating the listings as quickly as we can. However, things are changing faster than we can update them.

Many of the affected races are offering alternate options, including virtual options. We are unable to show these options. Even if a listing is marked as cancelled, please check with the race's website for all current information and options.

Upcoming Half Marathons within 50 miles of San Mateo, CA

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1. Golden Gate Headlands Marathon
2. Hellyer Half Marathon
3. Romancing the Island Half Marathon
4. Artichoke Half Marathon
5. Rock 'n' Roll San Francisco
6. Silicon Valley Half
7. Woodside/Purisima Creek Crossover
8. Diablo Trails Challenge
9. Rancho San Vicente Trail Challenge
10. Redwood
11. Coffee Meetup Run - San Francisco
12. Daybreak Marathon - San Francisco
13. SPASM Lake Chabot
14. Saratoga Trail Run
15. Mt. Tam Wild Boar Half Marathon
16. Rodeo Beach Rumble
17. Sierra Azul Challenge Run
18. Western Pacific Marathon
19. Mermaid Run East Bay
20. Bay Bridge Half Marathon

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.