St. Helena close

Triathlon Calendar near St. Helena 2025-2026

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

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 Half Marathon 30 km 50 km
May
16
Saturday

Rim Rock 50 Mile Trail Challenge

Trail Run 50 mi
May
16
Saturday

Windsor Half Marathon - USA

3 mi 6 mi 13 mi
June 2026
Jun
28
Sunday

Cal Tri La Crema

Triathlon
July 2026
Jul
18-19
Sa - Su

Napa to Sonoma Half Marathon

5 km Half Marathon
August 2026
Aug
22-23
Sa - Su

Santa Rosa Marathon

5 km 10 km Half Marathon Marathon
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series