October ultra marathons in California, United States
22 races
Wild Wild West Marathon & Ultra
Oct 4, 2025 (Sat)
Lone Pine, California, United States
1.3 - 1.8
$163.25 - $211.17
Back on the Ranch Trail Run
Oct 4, 2025 (Sat)
Los Olivos, California, United States
$110 - $323
Cuyamaca 100K
Oct 4, 2025 (Sat)
Julian, California, United States
1.9
$245
Yuba Gold
Oct 5, 2025 (Sun)
Nevada City, California, United States
1.4
$107.68
Spooner's Cove
Oct 5, 2025 (Sun)
San Luis Obispo County, California, United States
1.3
Kodiak Ultra Marathons
Oct 10-11, 2025 (Fri-Sat)
Big Bear Lake, California, United States
1.3 - 2.6
Mile Madness Endurance Run
Oct 10-11, 2025 (Fri-Sat)
Rocklin, California, United States
$107.68 - $428.43
Mt. Umunhum Trail Conquest-Fall
Oct 11, 2025 (Sat)
San Jose, California, United States
1.3
$131
Bizz Johnson
Oct 11-12, 2025 (Sat-Sun)
Westwood-Susanville, California, United States
1.1
Ruth Anderson
Oct 11, 2025 (Sat)
San Francisco, California, United States
0.8 - 1.4
Euchre Bar Massacre
Oct 11, 2025 (Sat)
Foresthill, California, United States
2.8
Lake Tahoe Marathon
Oct 17-19, 2025 (Fri-Sun)
Tahoe City, California, United States
California Fall Classic 100K and 55K
Oct 18, 2025 (Sat)
Healdsburg, California, United States
1.6 - 1.9
$168.57 - $280.4
Cahuilla Rez Ultra
Oct 18, 2025 (Sat)
Anza, California, United States
2.9
$66.25 - $131.3
Lake Hodges Trail Fest
Oct 18, 2025 (Sat)
San Diego, California, United States
1.1
The Jackalope Lope
Oct 18, 2025 (Sat)
Redding, California, United States
$90
Tahoe Midnight Express Ultra 72
Oct 19, 2025 (Sun)
Lake Tahoe, California, United States
1.9
Weekend at Burney
Oct 23, 2025 (Thu)
Burney, California, United States
$71.56 - $216.5
Range of Light Trail Races
Oct 25, 2025 (Sat)
Bishop, California, United States
1.5
$147.27
Trail Run at Sly Park
Oct 25, 2025 (Sat)
Pollock Pines, California, United States
1.2
$125.8
Pinkathon Challenge for Breast Cancer
Oct 25, 2025 (Sat)
San Francisco, California, United States
Machete Trail Madness 100 Miler
Oct 31, 2025 (Fri)
Perris, California, United States
2 - 2.7
$184.55 - $323
Showing 1 - 22 of 22 events