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Triathlon Calendar near San Francisco 2025-2026

Explore the top triathlons near San Francisco for 2025-2026! We've gathered 75 exciting races in the area. Check out our detailed list below to find your next local race.

March 2025
Mar
14-17
Fr - Mo

The Rattlesnake Ramble

Trail Run 5 km 10 km 13 mi
Mar
15
Saturday

Zoom San Francisco

5 km 10 km 13 mi
Mar
15
Saturday

Abundant Grace Step Up for the Homeless

4 km
Mar
16
Sunday

Shamrock Fun Run and Walk

5 km
Mar
16
Sunday

Novato Lucky Run

5 km 10 km
Mar
22-23
Sa - Su

The Big Alta

Trail Run 28 km 50 km
Mar
22
Saturday

Redwood (Spring) Trail Run

Trail Run 5 mi 13 mi ... 26 mi 50 km
Mar
23
Sunday

Oakland Marathon

5 km 10 km 13 mi 26 mi
Mar
29
Saturday

Western Pacific

Trail Run 5 km 10 km 13 mi
Mar
30
Sunday

Lag Bon 10K

Trail Run 10 km
April 2025
Apr
5
Saturday

Golden Gate Headlands Marathon

Trail Run 10 km 13 mi 26 mi
Apr
5
Saturday

Diablo Trails Challenge

Trail Run 5 km 10 km 13 mi 50 km
Apr
12
Saturday

Woodside Crossover

Trail Run 50 km
Apr
12
Saturday

Romancing the Island Half Marathon

Trail Run 10 km 13 mi
Apr
12
Saturday

Fiercelifit Half Marathon

5 km 10 km 13 mi
Apr
12
Saturday

Lake Chabot Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
Apr
12
Saturday

Rodeo Beach Rumble

Trail Run 8 km 13 mi
Apr
12
Saturday

St. Edward 5K Walk & Run

5 km
Apr
19
Saturday

Go Wild Peninsula 4 Hr San Carlos

Trail Run 4 hr
Apr
26
Saturday

No Foolin' Foot Race

Trail Run 5 km 10 km
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