Saddles 100

Saddles 100 is a trail ultra in Prescott, Arizona, held on October 3, 2026. Two distances are on the program: the Saddles 100, a 100-mile race, and the Saddles 50, a 50-mile race, both on trails in the high country around Prescott.

The name refers to saddles, the low points between peaks, which is a fair warning that the terrain will involve climbing and descending rather than flat running. Prescott sits at altitude, and the combination of elevation, dry air and cool October nights makes hydration and layering as important as fitness. The 50-mile race is a sensible next step for runners with a 50K finish who are ready for a longer day with real vertical; the 100-mile race is for experienced ultrarunners who have already run through a night. Either way, a 20-to-24-week training block with weekly hill sessions, back-to-back long runs and a few long descents to condition your quads is the right preparation. If you live at sea level, arriving a few days early or adjusting your pace expectations for the altitude will help.