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National Capital 20 Miler and Janet Braunstein 5 Miler

📅 October 2, 2027 (estimated date)📍 Potomac · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (October 3, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

20 mi5 mi

About

The National Capital 20 Miler and the Janet Braunstein 5 Miler start at the Carderock Recreation Area in Potomac, Maryland. Billed as Washington, DC's premier fall marathon tune-up race, the event offers two distances: 20 miles, starting at 7:00 a.m., and 5 miles, starting at 7:20 a.m.

The flat, fast out-and-back course follows the Chesapeake and Ohio Canal Towpath, with water and nutrition stops along the way. Every registrant receives a sweatshirt, and cash prizes go to the top three men and women in each distance.

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