50K Races in California
As of October 6, 2026, Crewable lists 66 upcoming 50K races in California from October 2026 to August 2027. The next is HOKA Kodiak Ultra Marathons by UTMB on October 8 in Big Bear Lake. Registration is open for 17. 2 advertise prize money.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
With aid station data
9 aid
6 aid
5 aid
7 aid
2 aidin 18 days
Trail Run at Sly Park - Fall
Pollock Pines, CA5,000 ft gain
50KMarathon+5
Closes Oct 24from $55
Race calendar
October 2026
13 racesThe Peak 50K, Marathon & Half Marathon
Julian, CA10,000 ft gain50KMarathon+1Open until Oct 15from $115
November 2026
8 racesDecember 2026
7 racesJanuary 2027
7 racesFebruary 2027
6 racesMarch 2027
7 racesApril 2027
5 racesMay 2027
8 racesJune 2027
2 racesJuly 2027
2 racesAugust 2027
1 raceQuick answers
What is the next 50K race in California?
HOKA Kodiak Ultra Marathons by UTMB, on Thursday, October 8, 2026, in Big Bear Lake. Distances: 100 mi, 100K, 50K.
How many 50K races in California have open registration?
17 of the 66 list registration as open as of October 6, 2026, including Sunset & Cider Trail Races, Bizz Johnson and Lake Hodges Trail Festival.
Which 50K races in California offer prize money?
2 races advertise prize money, including No Name Trail Races ($500).
What is the busiest month for 50K races in California?
October 2026, with 13 of the 66. November 2026 follows with 8.
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