Washington, United States of America · Sunday 27 July 2025
Official Website →Jack and Jill's Downhill Marathon is a fast, scenic race set in the Cascade Mountains of Washington. Designed for runners looking to achieve a personal best or qualify for the Boston Marathon, this race features a gentle downhill course that follows a historic rail trail. The race begins near Snoqualmie Pass, where participants run through lush forests and past waterfalls, with the highlight being a run through the famous Snoqualmie Tunnel—a 2.5-mile stretch of darkness that adds a unique challe
Adjusted Time
5:03:21
Time difference: +63.4 minutes compared to a flat, road, temperate course.
| Surface | Trail |
| Elevation Gain | 23m |
| Elevation High | 793m |
| Elevation Low | 158m |
| Predicted High | 39°C |
| Predicted Low | 24°C |
| Chance of Rain | 29% |