Ultramarathons in California, United States 2026 6 events
Anything beyond the marathon — 80 kilometres and up. Browse upcoming events in United States.
Upcoming races
RunningIn 3 weeks
Angeles Crest 100 Mile Endurance Run
◎ Wrightwood, USA▤ Oct 3, 2026
160.9 km
RunningIn 8 weeks
Rio Del Lago 100 Mile + 50K Endurance Runs
◎ Granite Bay, USA▤ Nov 7, 2026
160.9 km
RunningIn 10 weeks
310K Run/walk powered by Leslie Cohen Law
◎ Santa Monica, USA▤ Nov 22, 2026
310 km
RunningIn 3 months
Anza Borrego Cuyamaca 50 Mile Run
◎ Julian, USA▤ Dec 5, 2026
80.5 km
RunningIn 4 months
Avalon Benefit 50 Mile/50K Run
◎ Avalon, USA▤ Jan 9, 2027
80.5 km
RunningIn 8 months
Rim Rock 50 Mile Trail Challenge
◎ Napa, USA▤ May 15, 2027
80.5 km