Obstacle Race Calendar near Big Bear Lake 2025-2026

Oct

18

Saturday

San Bernardino County Sheriff's Mud Run

Devore Heights | 28 mi from Big Bear Lake

5 km

San Bernardino County Sheriff's Mud Run, hosted by the Sheriff’s Athletic Federation, takes place in San Bernardino, California, at 18901 Institution Road (ZIP 92407). The event offers three options: a 5K mud run for individuals, a 1K Kids Race, and..

Mar

21-22

Sa - Su

Tough Mudder - Los Angeles

San Bernardino | 23 mi from Big Bear Lake

5 km 15 km

Tough Mudder Los Angeles brings muddy obstacle fun to Lake Elsinore Raceway on March 21 and 22 2026, with 15K and shorter courses plus an Infinity lap option. Expect rugged trails, big team challenges, a finisher medal and festival vibes for spectato..

May

16-17

Sa - Su

Big Bear Spartan Trifecta Weekend

Big Bear Lake

5 km 10 km Half Marathon

Big Bear Lake, California hosts the Spartan Trifecta Weekend at Big Bear Mountain Resort (Snow Summit). The event features Sprint (5K, 20 obstacles), Super (10K, 25 obstacles), and Beast (21K, 30 obstacles), plus a Kids Race. The course is famed for..