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Half Marathon Calendar near Mount Rainier 2025-2026

Explore the top half marathons near Mount Rainier for 2025-2026! We've gathered 28 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
14
Su

Founders Half Marathon

Trail Run 13 mi
Dec
14
Su

Holiday Half Marathon - Annandale

Half Marathon
Dec
20
Sa

Rudolph’s Race Half Marathon

5 km Half Marathon
Dec
20
Sa

Naptown Half Marathon

5 km 10 km Half Marathon
Dec
21
Su

Santa’s Sleigh Half Marathon

5 km Half Marathon
January 2026
Jan
10
Sa

Winter Carderock Half

5 km 10 km Half Marathon
Jan
11
Su

Winter Georgetown Half

5 km Half Marathon
Jan-Feb
31-1
Sa - Su

Little Patuxent River Half Marathon

Trail Run 3 mi 7 mi 13 mi
February 2026
Feb
14
Sa

Falling for You Half

5 km 10 km Half Marathon
Feb
15
Su

Valentine's Day Half

5 km Half Marathon
Feb
22
Su

Rosaryville Ramble Half

5 km 10 km Half Marathon
March 2026
Mar
15
Su

St. Patrick's Marathon

5 km Half Marathon Marathon
Mar
21
Sa

Rock 'n' Roll Washington DC

5 km Half Marathon
Mar
21
Sa

Annapolis Running Festival

5 km 10 km Half Marathon
Mar
29
Su

Operation Enduring Warrior Half

5 km 10 km Half Marathon
Mar
29
Su

B&A Trail Marathon

Trail Run Half Marathon Marathon
April 2026
Apr
19
Su

Spring Cleaning Half

5 km 10 km Half Marathon
Apr
26
Su

PNC Alexandria Half

5 km Half Marathon
Apr
26
Su

Run Thru Reston

5 km Half Marathon
May 2026
May
2
Sa

Potomac River Run Marathon

13 mi 26 mi