Ultramarathon Races in Healdsburg
Find Ultramarathon running races in Healdsburg. Browse upcoming ultramarathon events, registration details, and race information for 2026.
2 races found
Trail
Lake Sonoma 100K & 50K
11 Apr 2026
Healdsburg, United States
100km · Ultra
Lake Sonoma 100K & 50K is a 100 km ultramarathon trail race held in Healdsburg, CA. The event takes place in April 2026.
Trail
Sonoma Fall Classic
17 Oct 2026
Healdsburg, United States
160.9km · Ultra
Sonoma Fall Classic is a 161 km ultramarathon trail race held in Healdsburg, CA. The event takes place in October 2026.