One moonlit desert loop at sunset on Halloween — costumes strongly encouraged
Other trail races within 54 miles
The Jackass Night Trail sends costumed runners out at dusk on a single lap of the Javelina course — 19 miles of Sonoran Desert singletrack under a Halloween moon. The race starts at sunset, immediately plunging runners into the desert night, with the legendary Jackass Junction aid station roughly halfway through delivering the full Javelina party experience. No pacers, just one moonlit loop with some of ultrarunning's most festive aid station energy.
Fountain Hills, AZ, United StatesOctober 31, 2026
Javelina Jundred Jackass 31K is a loop trail race in Fountain Hills, AZ, United States, held on October 31, 2026. The course covers 19 miles, climbs 1,170 ft, and has an 8h30m cutoff.
| Location | Mile | Elevation | Cutoff | Crew | Drop bags |
|---|---|---|---|---|---|
Start Start | 0.0 | 1,693 ft | — | Crew | Drop Bags |
Coyote Camp Aid Aid Station | 3.9 | 1,867 ft | — | ||
Jackass Junction Aid Aid Station | 10.3 | 2,467 ft | — | Drop Bags | |
Rattlesnake Ranch Aid Aid Station | 15.4 | 1,906 ft | — | ||
Finish Finish | 19.0 | 1,693 ft | 8h30m2:30 AM +1 | Crew | Drop Bags |
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Multiple camping options at Javelina Jeadquarters: pre-set Tent City rentals (with optional cots and sleeping bags), BYO tent camping, car camping, and RV camping. Camping passes reserved through Ultrasignup registration on a first-come, first-served basis. Check-in begins Friday before race day.
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