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Obstacle Race Calendar near Guerneville 2025-2026

Explore the top obstacle runs near Guerneville for 2025-2026! We've gathered 13 exciting races in the area. Check out our detailed list below to find your next local race.

June 2025
Jun
22
Sunday

La Crema Cal Tri Sonoma

Triathlon
Jun
22
Sunday

Sebastopol Solstice 5k

5 km
August 2025
Aug
23-24
Sa - Su

Santa Rosa Marathon

5 km 10 km 13 mi 26 mi
October 2025
Oct
12
Sunday

Clo Cow Half Marathon

5 km 10 km 13 mi
Oct
18
Saturday

California Fall Classic at Lake Sonoma

Trail Run 55 km 100 km
Oct
18
Saturday

Lake Sonoma 100K / 55K

Trail Run 55 km 100 km
Oct
25
Saturday

Napa Fall Wine Country Marathon

Trail Run 10 km 13 mi 26 mi
November 2025
Nov
1
Saturday

IPA 10K

3 km 10 km 13 mi
Nov
1
Saturday

Ipa Half Marathon

3 km 10 km 13 km
Nov
27
Thursday

Santa Rosa Turkey Trot

5 km
February 2026
Feb
21
Saturday

Beer City Half - Santa Rosa

5 km 10 km 13 mi
March 2026
Mar
1
Sunday

Napa Valley Marathon

5 km 13 mi 26 mi
April 2026
Apr
12
Sunday

Napa Valley Endurance Run

Trail Run
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