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Triathlon Calendar near Orinda 2025-2026

Explore the top triathlons near Orinda for 2025-2026! We've gathered 66 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
7
Sunday

Hunter S. Thompson Fear & Loathing

Trail Run 50 km 50 mi
Dec
13
Saturday

Holiday Run and Walk for Health

3 mi
Dec
27
Saturday

Brazen Almost New Year's Eve

5 km 10 km 13 mi
January 2026
Jan
1
Thursday

Brazen New Year's Day

Trail Run 5 km 10 km 13 mi
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