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Trail Running Calendar near East San Mateo 2025-2026

Monthly updates for East San Mateo

Get new running races (and updates) in your inbox every month.

Explore the top trail runs near East San Mateo for 2025-2026! We've gathered 47 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
20
Sa

Woodside Ramble

Trail Run 10 km Half Marathon 35 km 50 km
Dec
27
Sa

Brazen New Year's Eve

Trail Run 5 km 10 km Half Marathon
January 2026
Jan
1
Th

Brazen New Year's Day

Trail Run 5 km 10 km Half Marathon
Jan
3
Sa

Hacienda Hills Trail Run - Winter

Trail Run 5 km 10 km ... Marathon 50 km
Jan
18
Su

Crystal Springs (Winter) Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Jan
18
Su

Crystal Springs Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Jan
24
Sa

Pacifica Foothills Trail Run

Trail Run 10 km Half Marathon 30 km
Jan
24-25
Sa - Su

Golden Gate Trail Classic

Trail Run 15 km 25 km 50 km 50 mi
Jan
31
Sa

Coyote Hills Run

Trail Run 5 km 10 km Half Marathon
February 2026
Feb
7
Sa

Mt. Umunhum Trail Conquest - Winter

Trail Run 5 km 7 mi ... Marathon 50 km
Feb
7
Sa

Golden Gate Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Feb
7
Sa

JW House Hope Run

Trail Run 5 km 10 km
Feb
14
Sa

Bay Breeze - San Leandro

Trail Run 5 km 10 km Half Marathon
Feb
21
Sa

Redtail Ridge

Trail Run 5 km 10 km ... 30 km 50 km
Feb
21
Sa

Montara Mountain Trail Run

Trail Run 10 km Half Marathon ... Marathon 50 km
March 2026
Mar
1
Su

Zoom Angel Island

Trail Run 5 mi 10 mi 15 mi
Mar
7
Sa

Skyline Ridge Trail Run

Trail Run 10 km Half Marathon 50 km
Mar
14
Sa

Marin Ultra Challenge

Trail Run 31 mi 50 mi
Mar
21
Sa

Redwood (Spring) Trail Run

Trail Run 5 km 5 mi ... Marathon 50 km
Mar
22
Su

Horseshoe Lake Half Marathon

Trail Run Half Marathon