WELCOME to the Glacier Ridge Trail (GRT) Ultramarathons and Trail Race Website!
The 2025 race will be held on May 10, 2025.
Check out the 2024 Race Results — Overall Winners List Relay Team Split Times
2025 Race Photos — Tom Baumgardner
The GRT will offer four events to provide participants a choice of distances to match their experience, early-season fitness, and season-long goals – the 20 Mile Trail Run, the 50K and 50 Mile Ultramarathons and the 50-Mile 5-person relay. Except for a short stretch at the start and near the end, the 20 Mile and 50K events will be entirely on an exceptional single-track trail. In addition to the single-track, the 50 Mile course also includes a section of very runnable, yet very hilly, double-track/fire roads through beautiful hardwood forests.
This race is held annually to celebrate our local trails and to provide a donation of all net proceeds to Moraine State Park, Jennings Environmental Center and McConnells Mill State Park. Our generous race sponsors have offset many of the race costs so that $140,000 could be provided to these parks over the race’s lifespan of twelve years.