Sat April 9 - Sun April 10 Apple Valley, UT 84737 US
RaceJoy Ready
These are challenging, scenic runs through the southern Utah desert adjacent to Zion National Park.
Race Video

This event offers scenic courses that run through the Southern Utah desert, adjacent to Zion National Park.

For the safety of our runners, we have instituted some eligibility requirements. Check them out here before registering!

We offer four distances:
🏃 100 Mile (Required qualification)
🏃 100K (Required qualification)
🏃 50K 
🏃 Half Marathon

Please note: the 100 Mile and 100K races will start on Saturday; the 50K and Half Marathon races will start on Sunday.

Race Website

Additional race information can be found at

Race Contact Info

If you have any questions about this race, click the button below.


Available for Apple and Android devices.

Interactive Race Day Experience with RaceJoy

Live Phone Tracking, GPS Progress Alerts and Cheers!

We are providing you with RaceJoy as part of the official race experience for the Zion Ultras & Trail Half Marathon.

Download the RaceJoy mobile app in advance to ensure proper phone setup. Invite your friends and family to track you and send you cheers!

Some key RaceJoy features include:

GPS Progress Alerts

  • Receive continual progress updates as you complete your goal.

Live GPS Tracking

  • Remote spectators can track your progress live in a map view. You can also track others.


  • Receive supportive audio cheers from remote friends & family.

Virtual Results (virtual events only)

  • Enter your race-assigned bib number to automatically submit your finish data for real-time scored results.
To use RaceJoy, you must carry your phone and activate tracking on the day you complete your race.
View RaceJoy How-To

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