Arizona · 100 Mile · 48hrs · 24hrs
Fat Ox
Fat Ox is a 100 Mile, 48hrs, 24hrs, 12hrs and 6hrs event held in Buckeye, Arizona. Its next confirmed date is Friday, November 20, 2026. About 32 runners take part across all distances.
- Race day
- November 20, 2026
- Location
- Buckeye, AZ
- Field size
- ~32 runners
Race details
- Date
- Friday, November 20, 2026
- Location
- Buckeye, Arizona
- Distances
- 100 Mile, 48hrs, 24hrs, 12hrs, 6hrs
- Field size
- About 32 runners
- Course
- 607 ft gain
- Registration
- ultrasignup.com
- Official website
- aravaiparunning.com
Registration, course & weather
- Registration status
- Open
- Entry fee
- Listed fee for the longest distance, $265 (from aravaiparunning.com, checked October 16, 2026)
- Start time
- 8:00 AM MST
- Course profile — 48 Hour
- Loop course; Road surface; USATF certified
- Course profile — 24 Hour
- Loop course; Road surface; USATF certified
- Course profile — 12 Hour
- Loop course; Road surface; USATF certified
- Course profile — 6 Hour
- Loop course; Road surface; USATF certified
- Course profile — 100 Mile
- Loop course; Road surface; 607 ft gain (estimated from third-party elevation data); USATF certified
About the Fat Ox
Fat Ox in Buckeye, AZ.
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Fat Ox: common questions
- When is the Fat Ox?
- The next confirmed date is Friday, November 20, 2026.
- Where is the Fat Ox held?
- In Buckeye, Arizona.
- What distances does the Fat Ox offer?
- 100 Mile, 48hrs, 24hrs, 12hrs and 6hrs.
- How many people run the Fat Ox?
- About 32 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Fat Ox?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Fat Ox?
- Yes — registration is open. Listed fee for the longest distance, $265 (from aravaiparunning.com, checked October 16, 2026).
- What time does the Fat Ox start?
- 8:00 AM MST.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.