Greenbrier River Trail Marathon
Race Day Weather
Comfortable temps
Mild 59°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing. High humidity (93%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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Race Info
For 2026, both the Marathon and Half Marathon moved to new out-and-back courses starting and finishing in downtown Marlinton, WV, on the scenic Greenbrier River Trail (GRT) in Pocahontas County. Both start on First Avenue in Marlinton before heading onto the trail. The Half Marathon (13.1 miles) turns around at 6.55 miles with about 80 feet of elevation gain. The Marathon (26.2 miles) continues north through Sharp's Tunnel to a turnaround at 13.1 miles, crossing the tunnel twice, with about 160 feet of total elevation gain. Boston Qualifier certification for the new marathon course is in progress. Source
Race weekend
FAQ
When is the 2026 Greenbrier River Trail Marathon?
Is the Greenbrier River Trail Marathon a Boston Marathon Qualifier?
What is the time limit for the Greenbrier River Trail Marathon?
What will the weather be like for the 2026 Greenbrier River Trail Marathon?
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 50°/77° | - | 48° | |
2024 | | 52°/77° | - | 55° | |
2023 | | 39°/47° | - | 32° | |
2022 |  | 51°/52° | Light | 50° |