Ultra Marathons in California

Upcoming ultra marathons in California. Use filters to quickly find races by month, city or race type.

More races:ย USA running calendar

Date RaceDistanceLocationhf:tax:monthandyearhf:tax:cityhf:tax:typerace
12/21/2024Paramount Ranch Trail Runs10K, 12H, 13.1M, 30K, 50KAgoura Hills CA12-decemberagoura-hills-catrail
12/31/2024New Year’s One Day100M, 12H, 24H, 6HSan Francisco CA12-decembersan-francisco-catrail
01/04/2025Hacienda Hills Trail Run โ€“ Winter10K, 13.1M, 1M, 30K, 50K, 5K, 9MSan Jose CA01-januarysan-jose-catrail
01/05/2025Del Dios Trail Race10K, 13.1M, 50K, 5KEscondido CA01-januaryescondido-catrail
01/12/2025Crystal Springs Winter Trail Run13.1M, 26.2M, 35K, 50K, 8KWoodside CA01-januarywoodside-catrail
01/25/2025Folsom Lake Sweetwater Trail Run10K, 13.1M, 1M, 26.2M, 30K, 50K, 5K, 9MFolsom CA01-januaryfolsom-catrail
01/25/2025Sean O’Brien Trail Runs100K, 26.2M, 30K, 50K, 50MCalabasas CA01-januarycalabasas-catrail
01/25/2025Folsom Lake Trail Run10K, 13.1M, 26.2M, 30K, 50K, 9MFolsom CA01-januaryfolsom-catrail
02/15/2025Redtail Ridge 50K10K, 13.1M, 30K, 50KCastro Valley CA02-februarycastro-valley-catrail
02/22/2025Montara Mountain Trail Run10K, 13.1M, 20M, 26.2M, 50KPacifica CA02-februarypacifica-catrail
02/22/2025Sycamore Canyon Trail Race100K, 13.1M, 50KSan Diego CA02-februarysan-diego-catrail
03/15/2025Folsom Lake Southside Trail Run13.1M, 25K, 26.2M, 50K, 5K, 7Folsom Lake CA03-marchfolsom-lake-catrail
03/22/2025Redwood Spring Trail Run13.1M, 26.2M, 30K, 50K, 5MOakland CA03-marchoakland-catrail
03/22/2025Valencia Trail Race10K, 13.1M, 50KSanta Clarita CA03-marchsanta-clarita-catrail
03/29/2025Montaรฑa de Oro Trail Run12K, 13.1M, 36K, 50KLos Osos CA03-marchlos-osos-catrail
04/12/2025Lake Sonoma 5013.1M, 26.2M, 50MHealdsburg CA04-aprilhealdsburg-catrail
04/12/2025Leona Divide Trail Runs100K, 100M, 30K, 50M, 55KLake Hughes CA04-aprillake-hughes-catrail
04/19/2025Sierra Azul Trail Challenge13.1M, 20M, 26.2M, 50K, 5K, 7MSan Jose CA04-aprilsan-jose-catrail
04/20/2025Horseshoe Lake Trail Run13.1M, 26.2M, 30K, 50K, 5MLa Honda CA04-aprilla-honda-catrail
05/10/2025Grizzly Peak Trail Run10K, 13.1M, 26.2M, 30K, 50KBerkeley CA05-mayberkeley-catrail
05/17/2025O’Neill Park Trail Races10K, 13.1M, 30K, 50KTrabuco Canyon CA05-maytrabuco-canyon-catrail
05/31/2025Calero Trail Run – Summer10K, 13.1M, 15K, 1M, 25K, 26.2M, 50K, 5KSan Jose CA05-maysan-jose-catrail
06/07/2025Mt Umunhum Ultras10K, 13.1M, 26.2M, 30K, 50K, 52M, 5K, 9MSan Jose CA06-junesan-jose-catrail
06/14/2025Cool Moon 100 Mile Endurance Run100K, 100M, 11.5M, 13.5M, 25M, 50M, 5KCool CA06-junecool-catrail
07/05/2025Rancho Hills Trail Run10K, 10M, 13.1M, 26.2M, 30K, 50K, 5K, 8MMorgan Hill CA07-julymorgan-hill-catrail
07/12/2025The Peak 50K13.1M, 26.2M, 50KJulian CA07-julyjulian-catrail

California Race Calendar

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Reviewed by Runningstate