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Triathlon Calendar near Menlo Park 2025-2026

Explore the top triathlons near Menlo Park for 2025-2026! We've gathered 76 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
31
Sunday

Crystal Springs Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
September 2025
Sep
6
Saturday

LSA's Run Home

5 km 10 km
Sep
6
Saturday

Stevens Creek Striders Reservoir Run

Trail Run 2 mi 11 km 13 mi
Sep
7
Sunday

Berkeley Half

13 mi 26 mi
Sep
7
Sunday

Diplo's Run Club

5 km
Sep
13
Saturday

South Hills Single Track Trail Run - Summer

Trail Run 5 km 10 km ... 26 mi 50 km
Sep
13
Saturday

Berkeley Trail Adventure

Trail Run 10 km 13 mi 35 km 50 km
Sep
13
Saturday

The Best Races - San Francisco

5 km 10 km 13 mi
Sep
20
Saturday

Rocky Ridge Trail Half Marathon

Trail Run 5 km 10 km 13 mi
Sep
20
Saturday

Newark Mile 4k

4 km
Sep
20
Saturday

Mt. Umunhum Marathon

Trail Run 26 mi
Sep
21
Sunday

Island Running Festival

5 km 10 km 13 mi
Sep
21
Sunday

SF Aloha Run for Peace

5 km 10 km
Sep
27
Saturday

Pacifica Summit Run

Trail Run 10 km 13 mi
Sep
27-28
Sa - Su

Dick Collins Firetrails

Trail Run 42 km 80 km 100 km
Sep
27
Saturday

Spartan Trail - San Jose Trail Challenge

Trail Run 10 km 21 km 50 km
Sep
27
Saturday

Belmont Water Dog Run

5 km 10 km
October 2025
Oct
4-5
Sa - Su

Rock 'n' Roll San Jose

5 km 10 km 13 mi
Oct
4
Saturday

Star City San Bruno Mountain Half Marathon

Trail Run 5 km 13 mi
Oct
4
Saturday

Reservoir Dogs Trail Run - Orinda, CA

Trail Run 10 km 13 mi 35 km
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