Seneca Creek Greenway Trail 50K
Race Day Weather
Cold start — layer up, warming through the race
Runners will start in chilly 34°F conditions — dress in layers for the corral and plan to shed early. Temperatures rising to 48°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
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Race Info
The Seneca Creek Greenway Trail 50K starts and finishes at the Nuthatch Pavilion in Seneca Creek State Park in Gaithersburg, Maryland, and runs about 31.9 miles on the Saturday of race weekend. It follows the same single-track dirt trails as the marathon, rolling along Seneca Creek and its parallel trails with roughly 2,200 feet of climbing, then adds a loop around Clopper Lake after the decision point at mile 27. Expect mud, rocks, roots and slick wooden bridge crossings.
