Fremont close

Trail Running Calendar near Fremont 2025-2026

Explore the top trail runs near Fremont for 2025-2026! We've gathered 72 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
31
Sunday

Crystal Springs Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
September 2025
Sep
6
Saturday

LSA's Run Home

5 km 10 km
Sep
6
Saturday

Stevens Creek Striders Reservoir Run

Trail Run 2 mi 11 km 13 mi
Sep
7
Sunday

Diablo Trail Run

Trail Run 4 mi 10 mi ... 26 mi 50 km
Sep
7
Sunday

Berkeley Half

13 mi 26 mi
Sep
7
Sunday

Diplo's Run Club

5 km
Sep
13
Saturday

South Hills Single Track Trail Run - Summer

Trail Run 5 km 10 km ... 26 mi 50 km
Sep
13
Saturday

Berkeley Trail Adventure

Trail Run 10 km 13 mi 35 km 50 km
Sep
20
Saturday

Rocky Ridge Trail Half Marathon

Trail Run 5 km 10 km 13 mi
Sep
20
Saturday

Newark Mile 4k

4 km
Sep
20
Saturday

Mt. Umunhum Marathon

Trail Run 26 mi
Sep
21
Sunday

Island Running Festival

5 km 10 km 13 mi
Sep
27
Saturday

Pacifica Summit Run

Trail Run 10 km 13 mi
Sep
27-28
Sa - Su

Dick Collins Firetrails

Trail Run 42 km 80 km 100 km
Sep
27
Saturday

Spartan Trail - San Jose Trail Challenge

Trail Run 10 km 21 km 50 km
October 2025
Oct
4-5
Sa - Su

Rock 'n' Roll San Jose

5 km 10 km 13 mi
Oct
4
Saturday

Star City San Bruno Mountain Half Marathon

Trail Run 5 km 13 mi
Oct
4
Saturday

Reservoir Dogs Trail Run - Orinda, CA

Trail Run 10 km 13 mi 35 km
Oct
11
Saturday

Mt. Umunhum Trail Conquest-Fall

Trail Run 5 km 7 mi ... 26 mi 50 km
Oct
12
Sunday

Run for Education

5 km 10 km
Articles
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series
Stride with Confidence: A Comprehensive Guide to Saucony Running Shoes
Essential Running Form Techniques for Enhanced Performance and Injury Prevention