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Ultramarathon Events in California 2025-2026
Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. In California, there are a couple of city-based ultramarathons, but most ultras make the most of the Golden State's stunning scenery and landscapes, such as its coastlines, National Parks, mountains, and deserts. With ultra races taking such a long time complete, these views provide a welcome distraction for runners. The Western States 100-mile Endurance Race is known as one of the most beautiful events, and for the truly fearless, the Badwater Ultramarathon travels a distance of 135 miles through Death Valley.
7
La Honda, US
Thu 7th Aug 2025
22
Santa Clarita, US
Sat 22nd Mar 2025
22
Los Angeles County, US
Sat 22nd Mar 2025
29
San Luis Obispo County, US
Sat 29th Mar 2025
29
Buellton, US
Sat 29th Mar 2025
12
Geyserville, US
Sat 12th Apr 2025
12
Woodside, US
Sat 12th Apr 2025
12
Woodside, US
Sat 12th Apr 2025
12
Reedley, US
Sat 12th Apr 2025
26
Borrego Springs, US
Sat 26th Apr 2025
31
Bishop, US
Sat 31st May 2025
7
Fish Camp, US
Sat 7th Jun 2025
13
Jacksonville, US
Fri 13th Jun 2025
29
Chico, US
Sun 29th Jun 2025
29
Corona, US
Fri 29th Aug 2025
11
San Francisco, US
Sat 11th Oct 2025
18
San Diego, US
Sat 18th Oct 2025
22
Oakland, US
Sat 22nd Mar 2025
22
Santa Clarita, US
Sat 22nd Mar 2025
5
Folsom, US
Sat 5th Apr 2025
12
Castro Valley, US
Sat 12th Apr 2025
12
Ventura, US
Sat 12th Apr 2025
1.0
20
La Honda, US
Sun 20th Apr 2025
2
Corona, US
Fri 2nd May 2025
3
Los Angeles, US
Sat 3rd May 2025
10
Berkeley, US
Sat 10th May 2025
10
Rachel, US
Sat 10th May 2025
1
Oakland, US
Sun 1st Jun 2025
28
Clark County, US
Sat 28th Jun 2025
12
Santa Cruz, US
Sat 12th Jul 2025
16
Oakland, US
Sat 16th Aug 2025
31
Woodside, US
Sun 31st Aug 2025
6
El Dorado County, US
Sat 6th Sep 2025
7
Clayton, US
Sun 7th Sep 2025
5
San Luis Obispo County, US
Sun 5th Oct 2025
11
Susanville, US
Sat 11th Oct 2025
1
Granite Bay, US
Sat 1st Nov 2025
8
Castro Valley, US
Sat 8th Nov 2025
31
San Jose, US
Wed 31st Dec 2025
10
Avalon, US
Sat 10th Jan 2026
22
Aliso Viejo, US
Sun 22nd Feb 2026
