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District of Columbia Triathlon Calendar 2025-2026

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Explore the best triathlons in District of Columbia for 2025-2026! Our updated list features 52 exciting races across the region. Find your next race in District of Columbia below and join the running community at these great events!

September 2025
Sep
6
Saturday

International Peace Marathon

21 km 42 km
Sep
6
Saturday

Dashing to Summer's End 10k

5 km 10 km
Sep
6
Saturday

In Their Shoes 5K Run/Walk

5 km
Sep
7
Sunday

Mount Vernon Park 10k

5 km 10 km
Sep
7
Sunday

Heroes on the Run

5 km
Sep
13
Saturday

Run for the Arts 5k Run & Walk

5 km
Sep
14
Sunday

DCHalf Marathon

5 km 21 km
Sep
14
Sunday

Bishop Memorial 10k

5 km 10 km
Sep
14
Sunday

DC Half Races

5 km 21 km
Sep
19
Friday

Oktoberfest 10k

5 km 10 km
Sep
20
Saturday

5K to End HIV

5 km
Sep
20
Saturday

St. Anselm's Family 5k

Trail Run 5 km
Sep
21
Sunday

Autumn Georgetown Half

5 km 21 km
Sep
21
Sunday

RunThrough USA Anacostia Park 10k

5 km 10 km
Sep
21
Sunday

Anacostia 10k

5 km 10 km
Sep
27-28
Sa - Su

Norma E Boyd Race for Education

5 km
Sep
28
Sunday

Run Geek Run 5K

5 km
October 2025
Oct
4
Saturday

Fort Hunt Park 10k

5 km 10 km
Oct
4
Saturday

Predator and Prey 5k

5 km
Oct
5
Sunday

DC Safe Half

5 km 21 km
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