17 endurance races found in California.
California
- Sep262026Backyard UltraPro + Amateur
JP's Backyard Ultra/Hike
—Napa, CABackyard UltraTBDopen - Oct102026RunningPro + Amateur
2026 2XU Long Beach Marathon & Half Marathon
—Long Beach, CAMarathon / Half / 5KTBDopen - Oct172026Ultra MarathonsPro + Amateur
Sonoma Fall Classic
—Healdsburg, CA100 Mile Sufferfest, 100 Mile Relay, 50 Mile Relay, Lake Sonoma 50 Mile, Sonoma Trail MarathonTBDopen - Oct282026Ultra MarathonsPro + Amateur
Machete Muertos 200
—Perris, CA200 Miler, 100 Miler, 50 Miler, 20 Miler, 10 MilerTBDopen - Dec052026Cross CountryPro + Amateur
Foot Locker Cross Country Nationals
—San Diego, CA5K Cross CountryTBDopen - Mar062027Trail RunningPro + Amateur
Way Too Cool 50K
—Cool, CA08:00 AM50K4,700 ft$150open - Apr032027TriathlonPro + Amateur
Ironman 70.3 Oceanside
—Oceanside, CA06:40 AM70.3 mi2,400 ft$435open - Apr042027RunningPro + Amateur
Carlsbad 5000
—Carlsbad, CA07:00 AM5K60 ft$55open - May012027Multi-SportPro + Amateur
Wildflower Long Course Aquabike
—Bradley, CA08:15 AMSwim 1.2 mi / Bike 56 mi3,400 ft$265open - May012027Bicycle RacesPro + Amateur
Belgian Waffle Ride California
—San Diego, CA07:00 AM134 mi mixed surface11,000 ft$235open - Jun052027Open Water Swimmingamateur
Alcatraz Sharkfest Swim
—San Francisco, CA07:15 AM1.5 mi open water$195open - Jun062027TriathlonPro + Amateur
Escape from Alcatraz Triathlon
—San Francisco, CA06:30 AM1.5 mi swim / 18 mi bike / 8 mi run1,500 ft$900open - Jun132027Trail RunningPro + Amateur
Dipsea Race
—Mill Valley, CA08:30 AM7.4 mi2,200 ft$75open - Jun192027Trail RunningPro + Amateur
Broken Arrow Skyrace 23K
—Olympic Valley, CA07:00 AM23K4,300 ft$175open - Jun262027Ultra Marathonsprofessional
Western States 100
—Olympic Valley, CA100 Miles18,000 ft$495open - Jun262027Ultra MarathonsPro + Amateur
Western States 100
—Olympic Valley, CA05:00 AM100 mi18,000 ft$475open - Jul312027Mountain BikePro + Amateur
Downieville Classic All-Mountain
—Downieville, CA08:00 AM29 mi XC + downhill4,500 ft$165open
