Friday, Nov 20, 2020 @ 8:00 AM

Fat Ox

nardini manor

Buckeye, AZ 48hrs, 24hrs, 24 Hours - 2 Person Relay, 24 Hours - 3 Person Relay, 12hrs

Registration Closed Thu. Oct 8, 2020 @ 12:00 AM

Cancelled Event



The coolest of the fixed time series, the Fat Ox returns to Nardini in 2020 for a 48-hour run fest! Participants choose between the 48 Hour, 24 Hour, 24 Hour relays or 12 Hour! Run all day and night on the 500-meter USATF certified course, a flat crushed gravel loop that winds is way around the grounds of the century-old manor!


Nardini Manor is a century-old country estate situated on five and a half acres of land that includes a maze and a custom-built running path. The property is located in an area of farmland, just South of I-10 in Buckeye, Arizona.

Nardini Manor’s owner Rodger Wrublik, a local ultrarunner and instrumental in Aravaipa Running’s history, custom built the running path in 2003 for use around the perimeter of the property.

The Aid Station tent will be easily accessible right on the course. The timing tent will be just West of the Aid Station with timing mats that you must cross each loop. You can setup your own tent in front of the manor for no charge.

Race Information

Anything else you may need to know is located on the Fat Ox website! Information on the website includes: course information, race day schedule, crew information, race perks, and more.

Race entries are non-refundable and non-transferable. For other options, please check out our Race Withdrawal Policy.

Nardini Series

Run Nardini again and again in 2020! Start with the Hotfoot Hamster in May, return for the Jackrabbit Jubilee in August and then the new Fat Ox 48 Hour in November! Add on and save up to 15%! Experience all the Hamster high jinx, Jackrabbit shenanigans and Fat Ox folly! Whatever your reason, join us for all three and collect a special custom finisher's token for each!

Register for the entire series here: Nardini Series

Cupless Race

In a continued effort to reduce the footprint of our races, the 2020 Nardini Series will be CUPLESS! UltrAspire reusable cups will be available for purchase upon registration, on race day, or please feel free to bring your own cup or water bottle to keep on our runner table at the aid station. Thank you for helping us in our efforts by keeping our events green!


We cannot produce these runs without the help of our amazing volunteer team. You can even help and run on race day. If you would like to join our volunteer team, we are looking for help with event setup, aid station helpers, and event breakdown. Volunteer perks include a piece of Aravaipa merchandise or racy goody and Aravaipa Race Credits. You can see our current opportunities and signup here: Fat Ox Volunteer Form

Local time: 3:28 PM


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