Washington, D.C. Race Calendar

Washington, DC Half Marathons by Date • By City

Browse all 2021 Washington, D.C. half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up.


When you view a race, you’ll also find contact info if you’re having problems with your registration or need to contact the race directors.

February 2021

March 2021

Sun Mar 14 St. Patty's Half Marathon & 5K Washington DC

May 2021

Sun May 2 National Women's Half Marathon & 8K Washington DC
Sun May 2 Potomac River Run Marathon & Half Marathon Washington DC
Sun May 23 Spring Georgetown Half Marathon & 5K Washington DC

September 2021

Sat Sep 11 International Peace Marathon & Half Marathon Washington DC
Sun Sep 19 DC Half & Relay Washington DC

October 2021

Sat Oct 2 Potomac River Run Marathon & Half Marathon Washington DC
Sat Oct 9 Georgetown Half Marathon Washington DC
Sun Oct 31 Semper Fi Half Marathon & 5K Washington DC

November 2020

Sun Nov 1 Semper Fi Half Marathon & 5K Washington DC
Sat Nov 7 C & O Half Marathon & 5K Washington DC

December 2020