Extreme North Dakota Sandhills Ultra Run Experience (END-SURE)

March 21 2020, McLeod, ND

Canceled in 2020 -- Blog Post

25K start in 2015, photo by Wes Peck.

A beautiful trail run with 25K, 50K, 100K, and 100-mile options. 100K race takes in the entire length of the Sheyenne National Grasslands section of the North Country Trail, SW of Fargo North Dakota.  Sections of wide open prairie, pockets of forest, and rugged, rolling 'sandhills' keep the race interesting.  This event is North Dakota's second-longest footrace and first ultramarathon. The date makes the shorter 50K and 25K options great early season training or final long run leading up to Zumbro.  


Before Nov 1 Nov 1 - Feb 29 After Feb 29
25K $40 $55 $70
50K $55 $75 $90
100K $70 $95 $110
100M $70 $95 $110

Online registration closes 23:59:59 Wednesday of race week.  No race-day registration.
Youth (17 and under) save 50% with coupon ENDSUREYOUTH. Please don't bundle youth and adult registations when using this code.
Capped at 120 total participants.
Refund Policy


Sheyenne National Grasslands, approx. 45 minutes SW of Fargo, ND.  Base at the NE trailhead/Jorgen's Hollow Campground (6147 154th Ave SE, McLeod, ND 58057).


See the course book for course and other race details.

 Part of the UMTR Ultra Series. UMTR members receive a 15% discount on race entry in 50K, 100K, or 100M races. Email UMTR to get the discount code.


Distance Name Time Year
25 km men Paul Shol 1:39 2015
50 km men Paul Shol 3:53 2016
100 km men Marcel Thielke 9:30 2016
100 mi men Marcel Thielke 18:11 2017
25 km women Lisa Dunnigan 1:52 2017
50 km women Mallory Richard 4:16 2017
100 km women Candice McMackin 12:36 2017
100 mile women Mary Horton 46:24 2018

Past Races

Year Racers Results Photos Videos Race Reports Press
21/03/2019 Canceled due to COVID-19 concerns          
23/03/2019 45 started, 38 finished (weather) Results Tim Mary FB event, Mark  
24/03/2018 80 started, 78 finished (weather) Results     Joel, Strava 50K flyby Forum/WDAY
18/03/2017 101 started, 89 finished Results Jenn   Jess, NBtrailcmrunning, Toff  
19/03/2016 73 started, 67 finished Results Joel   Steve, John, Marcel, John, Dale  
28/03/2015 84 started, 83 finished Results, Wes   Steve  
29/03/2014 27 solo, 1 50K team Results Wes   JustinTim, Laura (prepost 1post 2)  
16/03/2013 32 solo, 1 50K team Results Wes   Eric (1,2), Dale  

Trail conditions in 2014, photo by Wes Peck.

Trail conditions in 2013, photo by Wes Peck.

Profits from this event--and all ENDracing events--will help support Ground Up Adventures, a 501(c)(3) non-profit based on North Dakota dedicated to helping kids get as much adventure as we wished we had growing up.