Marathons in California, United States
178 upcoming races are listed in California, including 49 marathons, 143 half marathons and 64 ultras. The next is Camp Turkey Terror: Night- Friday the 13th Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs on November 13, 2026.
December has the most races. Race pages link the official source where we have one. Confirm dates and prices with the organizer before you register.
178
Races listed
49
Marathons
December
Busiest month
16 Jun
Last updated
Go a level deeper
Links go down the map, not sideways. Each region and city has its own page of races.
Cities
Common questions
When is the next race in California?
Camp Turkey Terror: Night- Friday the 13th Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs on November 13, 2026. The table above lists every upcoming race in date order.
Which months are busiest in California?
December (43), November (37), April (22), counting every upcoming race listed in California.
Which distances can I run in California?
The listed races include 49 marathons, 143 half marathons, 64 ultras, 108 10Ks and 113 5Ks. Many events offer more than one distance on the same day.
How do I confirm a race’s details?
Open the race page and check its provenance ledger, which shows where each fact came from. Then confirm the date, price and entry rules with the organizer before you register or book travel.
Spotted something wrong on this page?
Dates and prices move · tell us and we check the organizer’s source