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MULTIDAYRUNNING
48-HourUSATFSimpler Logistics

Fat Ox Endurance Runs

A fixed-time festival on a certified 0.988178-mile concrete loop, headlined by the 48-hour race and 2026 USATF 24-Hour Championships.

Official WebsiteBack to Events

Event dates, entry rules, qualification standards, and course details can change. Always verify current information on the official event website before registering or booking travel.

Event Overview

Listed edition overview
DateNov 20-22, 2026
LocationGoodyear, Arizona, USA
Format48-Hour, 24-Hour, Fixed-Distance
TerrainRoad
RegionNorth America
Distance48 hr / 24 hr / 100 mi
State / areaArizona (AZ)
Course modelLoop
Cutoff48 hours for the headline race
SanctioningUSATF
HighlightsUSATF 24-Hour Championships, Certified Loop

Course & Terrain

Flat concrete loop at Estrella Mountain Regional Park with central aid and personal support space.

Entry & Logistics

Listed qualification and support details
Registration and feesCheck the official event website for current availability, deadlines, prices, taxes, and refund terms.

Why This Race Matters

Fat Ox Endurance Runs is a useful reference point for runners comparing long fixed-distance ultras that still unfold over multiple days. Its format, terrain, and support model shape the kind of preparation required: not just fitness, but pacing discipline, nutrition planning, foot care, and the ability to make good decisions under fatigue.

Planning Notes

  • Start conservatively and use flexible process checkpoints for effort, walking, food, fluid, alertness, and symptoms instead of forcing one hourly distance target.
  • Prepare several rest options before race week. Stop for sleep or assessment if alertness, coordination, or safe decision-making deteriorates.
  • Prepare for sleep decisions, weather swings, and aid-station discipline. The distance is only one part of a multi-day fixed-distance race.
  • Repetitive surfaces can expose fit, friction, and loading problems. Check in when symptoms or conditions change, and use only footwear already tested for the course.
  • The directory marks this as having comparatively simpler logistics. That editorial label is not a safety rating; verify cutoffs, terrain, support, crew access, and withdrawal procedures.

Verification & Sources

Verification scope: the listed edition's date, location, format, and available logistics were checked against the event-specific official sources below during the directory review dated August 18, 2026. Organizers can revise details after review.

  1. Official Fat Ox page — https://www.aravaiparunning.com/fat-ox/
  2. Multiday Running event directory review scope: August 18, 2026.