The Equinox Marathon, held on September 20, 2025, in Fairbanks, Alaska, is one of the most challenging marathons in the world. The course begins at the University of Alaska Fairbanks and features a significant climb to the summit of Ester Dome, followed by a steep descent back to the finish. With its rugged terrain and dramatic elevation changes, this marathon is a must-do for adventurous runners seeking a true test of endurance.\n\nThe event includes both a full marathon and half marathon, maki
Adjusted Time
5:16:59
Time difference: +77.0 minutes compared to a flat, road, temperate course.
| Surface | Trail |
| Elevation Gain | 1210m |
| Elevation High | 729m |
| Elevation Low | 137m |
| Predicted High | 13°C |
| Predicted Low | 6°C |
| Chance of Rain | 18% |