
Cass, United States of America · Monday 4 October 2027
A flat, fast, scenic marathon in West Virginia on the Greenbrier River Trail. A one of a kind race, in the State of West Virginia. On the scenic Greenbrier River Trail (GRT) in Pocahontas County, WV. We are currently exploring new course options. Stay tuned for updates in the upcoming month!
Adjusted Time
2:20:17
Time difference: +35.3 minutes compared to a flat, road, temperate course.
We don't yet have verified elevation data for this course, so we can't rate its difficulty against other half marathons. Our data pipeline backfills course elevation continuously - check back soon.
Greenbrier River Trail Marathon & Half Marathon is a half marathon held in Cass, United States of America. It is scheduled for Monday 4 October 2027. The course is run on trail surface with 0m of total climbing, with its high point near 0m above sea level. For registration and full race details, visit the official Greenbrier River Trail Marathon & Half Marathon website.
This is a very flat course, with only 0m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Based on historical weather data for October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 11°C to 19°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (5%), so dry conditions are likely.
Greenbrier River Trail Marathon & Half Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Greenbrier River Trail Marathon & Half Marathon against other half marathons to find the right race for your goals.
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