The 6 100K ultramarathons in Arizona, with each one's climb, cutoff and date. Every race links to its own page, where you can see how it fits the runner you are now.
| Race | Distance | Where | Date | Climb | Cutoff |
|---|---|---|---|---|---|
| Javelina Jundred 100 km Endurance Run | 100 KM | Fountain Hills, AZ | Oct 31, 2026 | 3,956 ft | 29 h |
| Fat Ox Run | 100 KM | Goodyear, AZ | Nov 20, 2026 | — | 23.5 h |
| Across the Years | 100 KM | Peoria, AZ | Dec 28, 2026 | 1,428 ft | 72 h |
| Coldwater Hundred | 100 KM | Goodyear, AZ | Jan 16, 2027 | 5,500 ft | 31.75 h |
| Black Canyon Ultras | 100 KM | Mayer, AZ | Feb 13, 2027 | 5,219 ft | 20.5 h |
| Desert Peak Ultra | 100 KM | Oracle, AZ | Apr 10, 2027 | 10,927 ft | 24 h |