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Trail Running Calendar near San Bernardino 2025-2026

Explore the top trail runs near San Bernardino for 2025-2026! We've gathered 34 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
7
Sunday

Lopers Club Holiday Classic Half Marathon

5 km 10 km 13 mi
Dec
21
Sunday

Reindeer Run Half Marathon - Riverside

5 km 10 km 15 km 21 km
January 2026
Jan
10
Saturday

Citrus Heritage Run

3 mi 6 mi 13 mi
Jan
24-25
Sa - Su

Socal Spartan Event Weekend

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

Tough Mudder - Los Angeles

Obstacle Run 5 km 15 km
April 2026
Apr
5
Sunday

Cal Tri Lake Perris

Triathlon
Apr
18
Saturday

Natro@Noli Indian School

Trail Run 5 km 21 km 42 km
Apr
25
Saturday

Dash for disABILITIES Superhero 5K

5 km
May 2026
May
2
Saturday

Nurses Rock

5 km 10 km
May
16-17
Sa - Su

Big Bear Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
May
17
Sunday

Gorgonio View Trail Run

Trail Run 10 km
May
23-24
Sa - Su

Nanny Goat

Trail Run 6 hr 12 hr 100 mi 24 hr
June 2026
Jun
20
Saturday

Jade's Furry Friends 5K

5 km
January 2030
Jan
1
Tuesday

Gemini Timing Demo

5 km
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