National Capital 20 Miler and Janet Braunstein 5 Miler
National Capital 20 Miler and Janet Braunstein 5 Miler is listed for October 3, 2026 in Potomac, Maryland, United States. Listed distances: 20 Miler, 5 Miler. Confirm the date, registration and travel details with the official organizer before you book.
About this race
RunSignup listed events: National Capital 20 Miler - running_race - 20 Miles; Janet Braunstein 5 Miler - running_race - 5 Miles. The National Capital 20 Miler is Washington, DC’s premier fall marathon tune-up race. Taking place on the C&O Towpath, the race offers runners a flat, fast out-and-back course with water and nutrition support at regular intervals. Runners may choose the 20 Miler or 5 Miler option. All runners receive race swag. Members of DC Road Runners receive $15...
Key facts
- Date
- October 3, 2026
- Location
- Potomac, Maryland, United States
- Events
- 20 Miler, 5 Miler
- Surface
- Road
- Official source
- Registration page & official site
- Listing status
- updated May 21, 2026
Before you register
- 1Confirm the race-day schedule
Verify the October 3, 2026 start times, packet pickup (collecting your race bib) and corral (your assigned start group) instructions on the official source before booking travel.
- 2Pin the exact start area
Use Maryland as the planning region, then confirm the precise start, finish, parking and transport with the organizer.
- 3Pick your distance
Listed options are 20 Miler, 5 Miler. Check the source for current per-distance availability and limits.
- 4Review entry terms
Read entry rules, refund terms, participant limits and transfer rules before you pay.