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Triathlon Calendar near Half Moon Bay 2025-2026

Explore the top triathlons near Half Moon Bay for 2025-2026! We've gathered 18 exciting races in the area. Check out our detailed list below to find your next local race.

September 2025
Sep
7
Sunday

Berkeley Half

13 mi 26 mi
Sep
7
Sunday

Diplo's Run Club

5 km
Sep
13
Saturday

Berkeley Trail Adventure

Trail Run 10 km 13 mi 35 km 50 km
Sep
20
Saturday

Newark Mile 4k

4 km
Sep
21
Sunday

Island Running Festival

5 km 10 km 13 mi
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
October 2025
Oct
4
Saturday

Star City San Bruno Mountain Half Marathon

Trail Run 5 km 13 mi
Oct
11
Saturday

Ruth Anderson Memorial Endurance Run

Trail Run 50 mi
Oct
12
Sunday

Diwali Fun Run

5 km 10 km
Oct
19
Sunday

Pumpkin Run by Senior Coastsiders

5 km 10 km 13 mi
Oct
19
Sunday

Great Pumpkin Run

5 km 10 km 13 mi
Oct
19
Sunday

BIG STEPS for Little Friends 5K

5 km
Oct
25
Saturday

Haunted Hills 10K Redwood City

Trail Run 5 km 10 km
Oct
25
Saturday

Pinkathon Challenge for Breast Cancer

5 km 10 km ... 26 mi 50 km
November 2025
Nov
2
Sunday

Oakland Tech 5km Fundraiser Race

Trail Run 5 km
Nov
2
Sunday

Golden Gate Half Marathon

5 km 13 mi
Nov
8
Saturday

Lake Chabot Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
Nov
27
Thursday

Oakland Turkey Trot

5 km
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