Founders Half Marathon
Race Day Weather
Cool conditions, mild wind
Runners will face temperatures starting at 35°F and rising to 47°F, with a light wind from the W at 6 mph. Humidity will average around 57%, providing a comfortable atmosphere. With the potential for light rain, runners should prioritize their gear for moisture and maintain hydration, but the overall conditions favor a steady pace.
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Race Info
The Founders Half Marathon is a 13.1-mile out-and-back race in Potomac, Maryland, organized by the DC Road Runners Club. The course runs along the C&O Canal Towpath from the Carderock Recreation Area, with two water stops at Lock 10 and Lock 6 passed twice each. It is race #2 of DCRRC's winter Snowball Series and was known as the Gar Williams Half Marathon before 2025, named for a past president of the club and of the Road Runners Club of America.
