Rivers & Rails Marathon
Race Day Weather
Cool start, warming finish
Runners will face a temperature rise from 39°F at the start to 55°F by the finish. Winds will be a headwind in the early miles, particularly challenging from miles 1-7 and 9-10, before shifting to a beneficial tailwind from miles 11-26. With average humidity at 59%, hydration should be prioritized, especially during the warmer late race segments.
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Race Info
The Rivers & Rails Marathon is a marathon, half marathon and 5K held in Brunswick, Maryland, starting near the entrance to the C&O Canal Towpath between the MARC train lot and the Potomac River. The marathon crosses the Potomac and Shenandoah rivers twice each, running through Harpers Ferry and Bolivar, West Virginia before returning to Brunswick; the half marathon crosses the Potomac twice and skips the Bolivar section. The Veterans Challenge 5K stays within Brunswick on a hilly course honoring veterans. The race debuts November 14, 2026, organized by Horizun Events, founded by Mike Buscher after he completed marathons in all 50 states.