# Half Marathon Races in San Mateo, CA (2026)

> 6 upcoming Half Marathon races in San Mateo, California.

- **Page:** https://runthis.run/races/california/san-mateo/half-marathon

## Races

- **[Cookie Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-201403-cookie-run-5k-10k-13-1-san-francisco)** — Sat, Oct 10, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile
- **[Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-201535-coffee-lovers-run-5k-10k-13-1-san-francisco)** — Sat, Oct 10, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile
- **[Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-201480-coffee-lovers-run-5k-10k-13-1-san-francisco)** — Sat, Nov 28, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile
- **[Thanksgiving Gobble Trot Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-205290-thanksgiving-gobble-trot-run-5k-10k-13-1-san-francisco)** — Sat, Nov 28, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile
- **[A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-205023-a-merry-christmas-run-5k-10k-13-1-san-francisco)** — Sat, Dec 26, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile
- **[New Year's Run 5K/10K/13.1 SAN FRANCISCO](https://runthis.run/event/rs-208023-new-years-run-5k-10k-13-1-san-francisco)** — Sat, Dec 26, 2026 · 12:00 AM UTC · San Mateo, CA · 5K / 10K / Marathon / 1 mile

## Nearby

- [All races in San Mateo, CA](https://runthis.run/races/california/san-mateo.md)
- [Half Marathon races in California](https://runthis.run/races/california/half-marathon.md)

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Source: [https://runthis.run/races/california/san-mateo/half-marathon](https://runthis.run/races/california/san-mateo/half-marathon) — data from Run This (runthis.run).