Javelina Jundred | Fun Run Atlas | RMN
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Monday, October 5, 2026 · New Jersey

Monday, October 5, 2026 · New Jersey

Javelina Jundred

Billed as the original costumed 100-mile trail party, held Halloween weekend with a one-loop Jackass Night 31K that starts at sunset on Halloween.

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Fun Run Atlas · Arizona

Iconic tradition · Fountain Hills, AZ

Javelina Jundred is a landmark running tradition in Fountain Hills, Arizona, with verified dates from October 31 through November 1, 2026.

ConfirmedCostumes encouraged
When
Oct 31–Nov 1, 2026
Start 7:00 AM (100M); 6:00 PM (31K)
Halloween weekend
Where
Four Peaks Staging Area, McDowell Mountain Regional Park
Fountain Hills, AZ · Maricopa
Directions
Entry
Register
Organized by
Aravaipa Running
Since 2003
Official siteRegisterDirectionsAdd to calendar

What to expect

  • costumes
  • Jalloween
  • night
  • glow gear
  • Jackass Junction party aid station
  • beer garden
  • camping

2026 Confirmed

Saturday, October 31, 2026 – Sunday, November 1, 2026

  • Oct 31–Nov 1, 2026

Checked Sun, Oct 4, 2026 against the official source.

2027 Projected

Date TBA

About the run

Runners loop the Pemberton Trail in McDowell Mountain Regional Park from a tent-city basecamp, with best-costume awards and a famously rowdy midway aid station. The organizers rate it 'R' for music and costumes.

The run

Distances
100 miles, 100K, Jackass Night 31K
Occasion
Halloween
Season
Fall
Field
446 registered entrants (2026)

Nearby

Sources

Details checked against the race’s own pages on Sun, Oct 4, 2026.