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California Obstacle Race Calendar 2025-2026

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Explore the best obstacle runs in California for 2025-2026! Our updated list features 13 exciting races across the region. Find your next race in California below and join the running community at these great events!

January 2026
Jan
24-25
Sa - Su

Socal Spartan Event Weekend

Obstacle Run 5 km 10 km Half Marathon
March 2026
Mar
21-22
Sa - Su

Tough Mudder - Los Angeles

Obstacle Run 8 km 15 km
Mar
21-22
Sa - Su

SoCal Deka Fit

Obstacle Run 5 km
Mar
21-22
Sa - Su

Tough Mudder Lake Elsinore

Obstacle Run 5 km 15 km
April 2026
Apr
4-5
Sa - Su

San Jose Spartan Trifecta Weekend

Obstacle Run 5 km 10 km Half Marathon 50 km
Apr
18-19
Sa - Su

San Diego Spartan Event Weekend

Obstacle Run 5 km 10 km
Apr
26
Sunday

Mud Factor - Fresno

Obstacle Run 5 km
May 2026
May
16-17
Sa - Su

Big Bear Spartan Weekend

Obstacle Run 5 km 10 km Half Marathon
May
30-31
Sa - Su

Monterey Spartan Event Weekend

Obstacle Run 5 km 10 km
August 2026
Aug
29-30
Sa - Su

Norcal Spartan Event Weekend

Obstacle Run 5 km 10 km
September 2026
Sep
12
Saturday

Tough Mudder - Big Bear

Obstacle Run 5 km 10 km
Sep
26-27
Sa - Su

Temecula Spartan Event Weekend

Obstacle Run 5 km 10 km
October 2026
Oct
17
Saturday

Ruff Run California

Obstacle Run
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