RunRace USA › California › 17th Annual GO2 San Francisco Bay Area 5K

17th Annual GO2 San Francisco Bay Area 5K

San Mateo, California · Sunday, September 20, 2026 · 5K

Official race page & registration ↗

17th Annual GO2 San Francisco Bay Area 5K takes place on Sunday, September 20, 2026 in San Mateo, California. The race is run over 5K. For anyone travelling in, Hayward is about 15 miles away.

It is one of 296 races on the California calendar that September. At $35, entry sits above the $30 median for a California 5K.

Date
Sunday, September 20, 2026
Location
San Mateo, California
Distances
5K
Entry fee
from $35

Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.

Making a race weekend of it?

Stay near the start line in San Mateo: check in Sep 19, out Sep 21.

Hotels on Booking.com ↗ Hotels on Expedia ↗

Common questions

When is 17th Annual GO2 San Francisco Bay Area 5K?

17th Annual GO2 San Francisco Bay Area 5K is scheduled for Sunday, September 20, 2026.

Where is 17th Annual GO2 San Francisco Bay Area 5K held?

17th Annual GO2 San Francisco Bay Area 5K is held in San Mateo, California. It is about 15 miles from Hayward.

What distances does 17th Annual GO2 San Francisco Bay Area 5K offer?

The listed distances are 5K.

How much does 17th Annual GO2 San Francisco Bay Area 5K cost?

Entry is listed from $35. Check the official race page for the current price, which usually rises closer to race day.

How do I register for 17th Annual GO2 San Francisco Bay Area 5K?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

See every race on the California calendar, California 5Ks, or use the Race Finder for maps and filters.