from $30
RegisterSan Mateo half marathons
Half Marathons in San Mateo, California
4 upcoming half marathons in San Mateo, listed by date with entry fees from race registration.
4
upcoming half marathons
Other distances in San Mateo
Half marathon results in California
From 224 half marathons with official results in the last two years, 63,950 finishers in all. San Mateo has too few scored half marathons for its own numbers, so these cover all of California.
2:19:26
typical finish
10:38 /mi
typical pace
97
finishers in a typical race
2:28:13
women, typical finish
2:09:53
men, typical finish
under 1:47:42
the fastest tenth
Entry for upcoming half marathons in California usually runs from $45 to $85, with a typical fee of $50 before processing fees.
Typical times are the middle finisher across these races, weighted by field size. School meets, stair climbs, and results with timing errors are left out.
Fastest half marathons in California
- 1Holiday Half Marathon, 10K (6.65 miles), 5K, Fun Run (1 mile)Goleta · median 1:55:31 · 93 finishers in 2025
- 2Ventura MarathonVentura · median 1:59:58 · 1,588 finishers in 2026
- 3Beer City Half™ Santa RosaSanta Rosa · median 2:00:34 · 199 finishers in 2025
- 4Alameda Island Running FestivalAlameda · median 2:01:48 · 297 finishers in 2026
- 5Visalia Half Marathon and 10K Run/WalkVisalia · median 2:03:06 · 397 finishers in 2026
Biggest half marathons in California
- 1The Hoag OC Marathon Running FestivalCosta Mesa · 10,181 finishers in 2026
- 2La Jolla Half Marathon, 10K, & 5KLa Jolla · 4,796 finishers in 2026
- 3Ventura MarathonVentura · 1,588 finishers in 2026
- 4Presidio Half MarathonSan Francisco · 1,489 finishers in 2026
- 5Two Cities MarathonFresno · 1,478 finishers in 2025
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