Hayden Lake Marathon, held on October 10-19, 2025, in Hayden, Idaho, is a scenic event that takes runners through winding roads with stunning views of Hayden Lake. The course is hilly, providing a challenging yet rewarding experience for participants. The event includes multiple distances, such as a full marathon, half marathon, quarter marathon, and 5K, making it accessible to runners of all levels.\n\nThe marathon starts at 7:30 a.m., with a cutoff time of 6 hours and 30 minutes, requiring run
Adjusted Time
4:14:57
Time difference: +15.0 minutes compared to a flat, road, temperate course.
| Surface | Road |
| Elevation Gain | 748m |
| Elevation High | 798m |
| Elevation Low | 683m |
| Predicted High | 11°C |
| Predicted Low | 7°C |
| Chance of Rain | 56% |