Javelina Jundred 100 Mile

Rush

McDowell Mountain Regional Park, Fountain Hills, AZ · 100 mi

Registration window

Sold out

Registration opens January 1 each year, first come, first served. The 100 Mile is currently SOLD OUT for 2026 with a waitlist open on UltraSignup. One of the largest, most popular 100-milers in the country (1,000-runner cap) and a Western States qualifier.

Opens: January 1, 2026

Closes: August 4, 2026

Estimated — verify before relying on it

Key info

Official website

100 miles

Rush registration — first come, first served

A Halloween-weekend costumed desert 100-miler on a looped course at McDowell Mountain Regional Park near Phoenix, AZ — famously festive and one of the most in-demand ultras in the US.

Go to official application page

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Exact dates, the official application link, and calendar sync are free once you create an account — no credit card required.

Race Agent is an independent, unofficial tracker and is not affiliated with Javelina Jundred 100 Mile or its organizers. Registration dates change without notice — always verify on the official race site before relying on this information.