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Triathlon Calendar near Washington 2025-2026

Explore the top triathlons near Washington for 2025-2026! We've gathered 184 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
11-12
Sa - Su

Credit Union Cherry Blossom

5 km 10 mi
Apr
12
Sunday

Breeze Thru the Trees 5k

Trail Run 5 km
Apr
12
Sunday

Louise Archer Sun Run

5 km
Apr
25
Saturday

BVFRD Fire Drill 5K

5 km
Apr
26
Sunday

PNC Alexandria Half

5 km Half Marathon
Apr
26
Sunday

Run Thru Reston

5 km Half Marathon
May 2026
May
2
Saturday

Farm Park Challenge

Trail Run 25 km 3 hr 6 hr 10 hr
May
2
Saturday

Go Gray in May

5 km
May
2
Saturday

Potomac River Run Marathon

13 mi 26 mi
May
2
Saturday

Healthy Strides 10K

5 km 10 km
May
3
Sunday

Run for the Wounded Half

5 km 10 km Half Marathon
May
3
Sunday

Run the Greenway

5 km 10 km
May
10
Sunday

Tricia Davis 5K

5 km
May
17
Sunday

Capitol Hill Classic 10K

3 km 10 km
June 2026
Jun
7
Sunday

Cal Tri DC

Triathlon
Jun
7
Sunday

Freedom Fighters Half Marathon

5 km 10 km Half Marathon
Jun
7
Sunday

Reston Sprint Triathlon

Triathlon
Jun
13
Saturday

OSS/CIA 50 Mile Night Run

Trail Run 25 mi 50 mi
Jun
27
Saturday

Summer Forest Half Marathon

5 km 10 km Half Marathon
August 2026
Aug
15
Saturday

MD Heat Trail Race

Trail Run 25 km 50 km
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