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Triathlon Calendar near Brisbane 2025-2026

Explore the top triathlons near Brisbane for 2025-2026! We've gathered 112 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
4
Saturday

Golden Gate Headlands Marathon

Trail Run 10 km Half Marathon Marathon
Apr
4
Saturday

Diablo Trails Challenge

Trail Run 5 km 10 km Half Marathon 50 km
Apr
11
Saturday

Romancing the Island Half Marathon

Trail Run 10 km Half Marathon
Apr
25
Saturday

Mt. Tam Wild Boar Half Marathon

Trail Run 10 km Half Marathon
May 2026
May
2
Saturday

Miwok 100K

Trail Run 100 km
May
3
Sunday

Aztec Run

5 km
May
9
Saturday

Muir Woods Marathon

Trail Run 7 mi Half Marathon Marathon
May
16
Saturday

Wildcat Half Marathon

Trail Run 5 km 10 km Half Marathon
May
30
Saturday

Nitro Trail

Trail Run 5 km 10 km Half Marathon
June 2026
Jun
6
Saturday

Bay Area 100

Trail Run 100 mi
August 2026
Aug
2
Sunday

Skyline 50k Endurance Run

Trail Run 50 km
Aug
22
Saturday

We Run Oakland: For Our Children

5 km
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