Massanutten Mountain Trails 100 Mile Run
Fort Valley, United States • 16 May 2026
Overview
The Massanutten Mountain Trails 100 Mile Run (MMT) is a 100-mile trail ultra run. It takes place on a demanding, rocky course in the Massanutten Mountains within Virginia's Shenandoah Valley.
Course Details
The route includes short but rugged mountain climbs that total over 18,000 feet of elevation gain. The event is held in May. While this date typically avoids the region's hottest summer weather, past events have experienced rain and storms. The course is noted for being well-marked.
Aid Stations
The event is known for its well-stocked and friendly aid stations.
Registration & Refunds
Entry opens on October 31, 2025, and there is no lottery system. Refunds are available under specific conditions: a full refund minus $25 is available until March 1, 2026. A refund minus $100 is available until April 16, 2026, provided the entrant list has at least 250 people and a waitlist exists to fill the spot. No deferrals or bib transfers are permitted. Visit the organization's website for the most recent information.