Road ultramarathons in California, United States

USATF-certified ultramarathon featuring city landmarks, Golden Gate Bridge out-and-back, challenging climbs, and coastal views

135-mile route from Badwater Basin to Whitney Portal crossing three mountain ranges, 14,600 feet of ascent, desert heat, and iconic California scenery

Looped course around Lake Merced with a challenging route designed for long-distance running

Loop course just under a mile in Jacob Myers Park, autumn scenery, multiple time options for distance-focused racing

No-frills urban ultramarathon from Twin Peaks with 50K or 50-mile routes through city landmarks, limited aid, and self-navigation challenges

USATF-certified 1.0-mile loop around Cottonwood Lake with lake views, challenging endurance events including 24 Hour Solo and 100 Mile distances

Fast, mostly flat 4.85-mile loop combining paved bike paths and wide dirt trails along the American River Parkway, crossing Guy West and Watt Bridges

Scenic Santa Ynez Valley course winding through peaceful backroads, local landmarks, and wine country hills between the Pacific Ocean and vineyards

Flat out-and-back route on asphalt and dirt paths, shared with cyclists and equestrians, featuring changing weather and a lively race atmosphere