Arizona's costumed 100-mile party run and WSER Golden Ticket race
Other trail races within 54 miles
The flagship Javelina Jundred 100 Mile covers one 22-mile opening loop on the Escondido Trail, followed by four 19-mile loops on the Pemberton, Shallmo, and Cinch trails — a five-loop format that cycles runners through the party at Javelina Jeadquarters all night long. The course is fast by desert 100-mile standards, with just over 6,000 feet of gain on rolling Sonoran singletrack, making it popular for debut hundreds and PR attempts alike. The race is a WSER Golden Ticket event — the top 2 men and women earn automatic entry to the following spring's Western States 100 — and all finishers under 30 hours earn a 2027 WSER lottery qualifier.
Fountain Hills, AZ, United StatesOctober 31, 2026
| Location | Mile | Elevation |
|---|---|---|
Start Start | 0.0 | 1,693 ft |
Coyote Camp Aid Station | 3.9 | 1,867 ft |
Jackass Junction Aid Station | 10.4 | 2,467 ft |
Rattlesnake Ranch Aid Station | 15.7 | 1,903 ft |
Javelina Headquarters Aid Station | 22.3 | 1,693 ft |
Coyote Camp Aid Station | 24.8 | 1,867 ft |
Jackass Junction Aid Station | 31.3 | 2,467 ft |
Rattlesnake Ranch Aid Station | 36.4 | 1,903 ft |
Javelina Headquarters Aid Station | 41.7 | 1,693 ft |
Coyote Camp Aid Station | 44.2 | 1,867 ft |
Jackass Junction Aid Station | 50.7 | 2,467 ft |
Rattlesnake Ranch Aid Station | 55.8 | 1,903 ft |
Javelina Headquarters Aid Station | 61.1 | 1,693 ft |
Coyote Camp Aid Station | 63.6 | 1,867 ft |
Jackass Junction Aid Station | 70.1 | 2,467 ft |
Rattlesnake Ranch Aid Station | 75.2 | 1,903 ft |
Javelina Headquarters Aid Station | 80.6 | 1,693 ft |
Coyote Camp Aid Station | 83.0 | 1,867 ft |
Jackass Junction Aid Station | 89.5 | 2,467 ft |
Rattlesnake Ranch Aid Station | 94.6 | 1,903 ft |
Finish Finish | 100.0 | 1,693 ft |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
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.
Late October in the Sonoran Desert brings warm afternoons (70-85°F) with full sun on open singletrack, and cool nights dropping to the low 40s-50s°F. Runners cycle through both extremes multiple times, requiring a hydration-heavy strategy for daytime miles and layering for overnight loops.
Daytime temperatures can reach 80-85°F on fully exposed desert singletrack during early loops
Overnight temperatures drop to the low 40s°F; layers and a headlamp are critical for all 100-mile runners
Course runs entirely in open desert with minimal shade; sunscreen required for any daytime miles
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