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Obstacle Race Calendar near Mount Rainier 2025-2026

Explore the top obstacle runs near Mount Rainier for 2025-2026! We've gathered 183 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
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
2
Saturday

Carderock 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
10
Sunday

DC Mother's Day 10k

5 km 10 km
May
16
Saturday

Dash Through the Dirt Half

Trail Run 5 km 10 km Half Marathon
May
17
Sunday

Capitol Hill Classic 10K

3 km 10 km
May
24
Sunday

Spring Georgetown Memorial Half

5 km Half Marathon
May
25
Monday

Fallen Soldiers Memorial Half

5 km 10 km Half Marathon
May
31
Sunday

Capitol City Chase Half

5 km 10 km Half Marathon
June 2026
Jun
7
Sunday

Reston Sprint Triathlon

Triathlon
Jun
14
Sunday

Cal Tri DC

Triathlon
Jun
14
Sunday

EOD Warrior Half

5 km Half Marathon
August 2026
Aug
15
Saturday

MD Heat Trail Race

Trail Run 25 km 50 km
September 2026
Sep
5
Saturday

Arlington Police, Fire, Sheriff and ECC 9/11 Memorial 5K

5 km
Sep
5
Saturday

Emancipation Day 5K

5 km
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