FRI - Sat, May 15 - 16TH
Grand Canyon 100 Mile, 50 Mile & 50K

General Info:

This race is run in the Kaibab National Forest at the entrance to the North Rim of the Grand Canyon. It is staged from the Kaibab Lodge the weekend after Hwy 67 opens up for the season to allow visitors access to the North Rim. The route traverses the famous Kaibab Plateau and links into the scenic Rainbow Rim trail, which takes you along 5 spectacular lookout points, then continues north to two more unbelievable overlooks- Crazy Jug Point and Monument Point.


Thursday: 100 mile check in from 2-8PM at the start/finish line.  (50K runners can check in at this time or on Friday from 2-8pm.) 

Friday: 5-5:30am- Last minute check ins. 

6am- The 100 mile race begins.  2pm-8pm-  50 mile and 50K check in.

Saturday:  5am-5:30 Last minute 50 mile/50K check ins

6am- 50 mile race begins 7am- 50K race begins


Time Cutoffs:

100 mile, Overall cutoff- 34 hours

50 mile, Overall cutoff- 16 hours

50K, Overall cutoff- 11 hours


Aid Station Info:

You can leave a drop bag for any aid station that you’d like.

The 100 miler has 14 fully stocked aid stations, the 50 mile has 7, and the 50K has 4.

Aid stations will be stocked with: water, ice, Gatorade, a variety of soda, fruit, boiled potatoes, tortillas w/ Nutella, PB&J, turkey sandwiches, dill pickles, chips, Ensure (or similar drink), hard candies, granola bars, fig newtons, anti chafing agent, sunscreen, first aid supplies.  We will have a limited supply of gels, salt caps, and electrolyte caps.

In addition to the standard fare, any night aid stations will have different warm food items such as broth (vegan), ramen noodles, rice/bean/cheese/salsa burritos, grilled cheese, quesadillas, coffee, hot chocolate, and pancakes/eggs/bacon in the morning.

Birthday cake will be served at the Parissawampitts aid station, celebrating all of the runners with May birthdays!

Click here to view more detailed aid station information, including directions for crew/pacer access.


Pacers & Crew:

Crew access is allowed at all aid stations except Stina and Dry Park Lakes. Click here to view more detailed aid station information, including directions for crew/pacer access.


Zero Waste event:

All UA events are zero waste, with less than 1% of the trash produced at the event going to the landfill (and no portapotty chemical sludge being sent to the wastewater treatment facilities.)  Please help by placing trash in appropriate containers.


Lodging / Camping:

The Kaibab Lodge is the nearest hotel to the starting line. The historic Jacob Lake Inn is also nearby.  Once these fill up, the nearest accommodations are in Fredonia, AZ and Kanab, UT.  De Motte Park campground is located next to the Kaibab Lodge, about ten minutes from the starting line. Kaibab Camper Village is the nearest campground with full hookups.


Getting here:

It is about 4 hours from Las Vegas to the Kaibab Lodge.  Zion and Bryce Canyon national parks are within an hour’s drive along this route if you’d like to take some extra time to explore. The approach from Salt Lake City is about 6 hrs and passes very near Bryce Canyon and the east entrance to Zion National Park.  It is about 4 hours from Flagstaff, Arizona and 5.5 hours from Phoenix.


Awards & SHWAG:

The belt buckles (awarded for the 100 miler finishers only) are each hand crafted using organic materials gathered on the course and preserved in resin.  The finishers’ award for the 50K and 50 mile distance is a hand thrown pottery mug.  Each of our awards is unique- you can choose the one that speaks to you.  Awards will be given to the top 3 overall male and female finishers for each distance as well.




We hope that you will join us at the finish line for as long as you’d like to welcome home the other finishers.  One of our goals this year is to create a welcoming environment for you to hang out with old and new friends.  To make this possible, we will have the following amenities present at the finish line to keep you comfortable- shade, seating, pizza, heated tents, drinks, hot showers, a wood-fired cedar hot tub, and a recovery tent.



Refund / Rollover Policy:

We are proud to offer one of the best refund/rollover policies out there.  The amount refunded will be determined by how much advanced notice you give us, since many costs involved with the race are incurred early.  If you notify us prior to 60 days before the race, you are eligible for a 100% refund or rollover towards any Ultra Adventures event.  If you notify us prior to 30 days before the race- a 75% refund or rollover will be issued.  If you let us know between 15-30 days prior to the event- a 50% rollover can be applied (sorry, no cash refunds issued within 30 days).  Within 15 days of the event- no refunds/rollovers will be issued.