“The original costumed 100 mile trail run party,” run Jalloween weekend in the Sonoran desert — and a Western States 100 Golden Ticket race where the top two men and women automatically qualify.
Quick facts
- Location: Javelina Jeadquarters (Four Peaks Staging Area), McDowell Mountain Regional Park, Fort McDowell, AZ (start/finish)
- Date: October 31–November 1, 2026, 6:00 AM Saturday start
- Distance: 100 miles — one 22.3-mile loop plus four 19.45-mile loops, 30-hour cutoff
- Website: aravaiparunning.com/javelina
- Contact: info@aravaiparunning.com · (602) 346-0554 — Aravaipa Running
- Registration: Opens January 1 via UltraSignup, capped at 1,000 runners, closes October 1. A Western States 100 qualifier (sub-30-hour finish) and Golden Ticket race — top 2 men and top 2 women earn automatic Western States entry.
Course description
Held entirely within McDowell Mountain Regional Park north of Fountain Hills, Arizona. The 100-mile route opens with one 22.3-mile loop featuring the Escondido Trail on the park’s far east side, followed by four 19.45-mile loops on the Pemberton, Shallmo, and Cinch Trails. From Javelina Jeadquarters, the course heads through Shallmo Wash and Pemberton Wash before climbing gradually to Coyote Camp, then continues north through rolling desert terrain toward the McDowell Mountains, past distinctive boulder formations, down to Jackass Junction, and along a gently descending stretch of the Pemberton Trail to Rattlesnake Ranch. The first loop returns via the Escondido Trail; subsequent loops return via the Cinch Trail. Terrain is smooth desert singletrack and sandy washes with moderate rolling climbs — fast by ultra standards, which is reflected in the sub-13-hour course records.
Elevation change
Approximately 6,296 feet of cumulative gain. Low point 1,623 feet; high point 2,486 feet — low-elevation desert terrain, a contrast to the mountain courses elsewhere on this list.
Aid stations
Four aid stations repeat every loop: Javelina Jeadquarters, Coyote Camp, Jackass Junction, and Rattlesnake Ranch. Crew access is limited to Javelina Jeadquarters. The course is marked with orange ribbon with black polka dots, with reflective markers added for the overnight hours.
Special conditions & average temps
Late-October desert weather in Fountain Hills is typically mild by day and can turn cold overnight, with the course entirely exposed to sun during daylight hours. Costumes are a defining feature of the event — Jalloween weekend draws a festival atmosphere with a beer garden, live entertainment, and an awards ceremony the following morning. Despite the party reputation, the terrain and repeated looping still make for a serious 100-mile effort.
Recent results — top 3, men & women
2025
- Men: 1. Will Murray 12:10:12 (course record) · 2. David Roche 12:18:06 · 3. Canyon Woodward 12:19:58
- Women: 1. Tara Dower 13:31:47 (course record) · 2. Beth McKenzie 14:31:14 · 3. Addie Bracy 14:45:02
2024
- Men: 1. David Roche 12:45:04 · 2. Jeff Mogavero 12:54:31 · 3. Dan Green 12:58:04
- Women: 1. Riley Brady 14:19:01 · 2. Hannah Allgood 14:38:30 · 3. Lauren Puretz 15:00:50
2023
- Men: 1. Jonathan Rea 12:43:10 · 2. Blake Slattengren 12:58:07 · 3. Ryan Montgomery 12:59:06
- Women: 1. Heather Jackson 14:24:47 · 2. Ragna Debats 14:55:27 · 3. Riley Brady 15:29:17
Registration deadline & how to get in
Open registration via aravaiparunning.com and UltraSignup, opening January 1 and closing October 1 or when the 1,000-runner field fills, whichever comes first. No qualifying race is required to enter, but the race itself is one of the sport’s highest-profile Western States 100 qualifiers and Golden Ticket races.
Traveling to this race? Find lodging near the venue via Hotels.com.