We design races that celebrate landscape, history, and community, transforming geography into experience. From river spans to rail corridors to historic main streets, every Horizun event is built with purpose, precision, and pride — elevating both the athlete and the towns that host them.
Rivers & Rails Marathon
November 14, 2026 — Brunswick, MD
The Rivers & Rails Marathon is a destination running weekend rooted in landscape, history, and connection. Beginning and ending in historic Brunswick, Maryland, the course extends into Harpers Ferry and Bolivar, West Virginia, tracing the confluence of the Potomac and Shenandoah Rivers and the rail corridors that helped shape the region.
