Monte Sereno close

Obstacle Race Calendar near Monte Sereno 2025-2026

Explore the top obstacle runs near Monte Sereno for 2025-2026! We've gathered 59 exciting races in the area. Check out our detailed list below to find your next local race.

September 2025
Sep
20
Saturday

Newark Mile 4k

4 km
Sep
20
Saturday

Mt. Umunhum Marathon

Trail Run 26 mi
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

Mermaid Triathlon & Duathlon Capitola

Triathlon
Oct
11
Saturday

Santa Cruz Westside Half Marathon

5 km 10 km 13 mi
Oct
11
Saturday

Mt. Umunhum Trail Conquest-Fall

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

Diwali Fun Run

5 km 10 km
Oct
19
Sunday

Pumpkin Run by Senior Coastsiders

5 km 10 km 13 mi
Oct
19
Sunday

Great Pumpkin Run

5 km 10 km 13 mi
Oct
25
Saturday

Haunted Hills 10K Redwood City

Trail Run 5 km 10 km
November 2025
Nov
1
Saturday

Zombierunner Halloween

Trail Run 5 km 10 km 13 mi 26 mi
Nov
1
Saturday

Almaden Hills Trail Run - Fall

Trail Run 5 km 10 km ... 26 mi 50 km
Nov
8
Saturday

Rancho Hills Trail Run - Fall

Trail Run 5 km 10 km ... 26 mi 50 km
Nov
27
Thursday

Zoom Turkey Trot

Trail Run 5 km 10 km 13 mi
Nov
29
Saturday

Quarry Turkey Half Marathon

Trail Run 5 km 10 km 13 mi
December 2025
Dec
6
Saturday

Zombierunner Quarry Lakes

Trail Run 5 km 10 km ... 30 km 26 mi
Dec
6
Saturday

Calero Trail Run - Winter

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

Summit Rock Half Marathon

Trail Run 5 km 10 km 13 mi
Dec - Jan
31-1
We - Th

New Year's One Day

6 hr 12 hr 100 mi 24 hr
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