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Triathlon Calendar near Santa Rosa 2025-2026

Explore the top triathlons near Santa Rosa for 2025-2026! We've gathered 27 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
11
Saturday

Lake Sonoma 50

Trail Run 13 mi 26 mi 50 mi
Apr
12
Sunday

Napa Valley Endurance Run

Trail Run
May 2026
May
3
Sunday

Tails & Trails- Charitable Walk/Run

Trail Run 5 km
May
16
Saturday

Napa Wilderness Trail Runs

Trail Run 10 km 21 km 30 km 50 km
May
16
Saturday

Rim Rock 50 Mile Trail Challenge

Trail Run 50 mi
May
30
Saturday

Sonoma Coast Trail Runs

Trail Run 21 km 30 km 42 km 50 km
July 2026
Jul
18-19
Sa - Su

Napa to Sonoma Half Marathon

5 km 21 km
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