COWBOY 100 HAS ITS OWN SHOW!

With the rapid sellout of the Cowboy 200/100 and the hefty waitlists that followed, we have decided to separate the two races starting in 2027. Note – we are STILL keeping each race capped at a comparably low 150-runners. We do this so we can get to know our runners and give you the attention you deserve. The 2026 waitlist suggests that you will want to get in early!

ADDITIONAL HIGHLIGHTS FOR THE NEW 100-MILE RACE

NEW BUCKLES FOR THE 100-MILE RACE. The 100-mile race is getting an upgrade in finishers hardware in 2027. The first 5 years had the same buckles, the separation of the two races will bring about a new design.

The 100-mile race will run the second half of the 200 in reverse – starting in Valentine and ending in Atkinson! Everyone gets to run the big bridge near sunup!

More aid for the 100-milers! PLANNED full aid in Arabia, Wood Lake, Johnstown, Ainsworth, Long Pine, Bassett, and Stuart. This drops the average distance between aid to around 14-miles, compared to 20-miles when ran in combination with the 200-mile race.

Since this is technically a new course, the course records for the original Cowboy 100 will not transfer over.

COURSE

Runners will travel from Valentine to Atkinson on the Cowboy Trail, an old “rail-trail” consisting of crushed limestone trails (off-limits to automobiles). During their epic 100-mile adventure, runners will be immersed in nature and experience the beauty and solitude of the Nebraska back-country.
This truly is a beautiful trek through America’s heartland.

The Cowboy Trail is non-technical, 100% runnable, and extraordinarily flat, making it perfect for the first time 100-miler, or for those seeking a PR.

The exact route of the Cowboy 100 is subject to change with route/trail closures and maintenance.

MORE INFO

Generous 34-hour cutoff! Perfect for a first-time 100 or a PR!
Live GPS Tracking by Legends Tracking USA
NON-REPETITIVE, point-to-point 100
Shuttle available for uncrewed runners (info to come)
Runners manual and aid station info to come

Deferral & Withdrawal

NO REFUNDS
NO BIB TRANSFERS

Entry can be deferred for 100% race credit if done at least 3 months prior to the race.
Entry can be deferred for 75% race credit if done at least 2 months prior to the race.
Entry can be deferred for 50% race credit if done at least 1 month prior to the race.

NO DEFERRALS AFTER MARCH 17th. No credit will be given after this date.

Please understand that there are no exceptions to these timelines. Please, don’t ask us to make one (we won’t).

•Races should deferred/withdrawn from BY THE RUNNER, rather than by messaging/emailing us.

• You will earn credit for ANY Ultraverse Supplements race, rather than being limited to the race in which you cancelled/deferred.

• The credit will be attached to your Ultrasignup account and will automatically apply the next time you register for an Ultraverse Supplements event. Note - sending an email to us does not initiate the cancellation of your registration. You must do this yourself for the credit to apply. You can do this by signing into Ultrasignup and then going to your registrations and clicking “edit”.

• Your credit appears in your registration history under "outstanding credits and coupons".

You can see all Ultraverse Supplements races at www.ultraversesupplements.com.

COWBOY HALL OF FAME

Runners who achieve a total of 1000-miles between the Cowboy 200 and 100 will be inducted into the Cowboy Hall of Fame. With the separation of the Cowboy 200 & 100 it is possible to accumulate 300-miles/year towards this achievement! Hall of Famers will receive an EPIC, top-of-the-line, Cowboy HOF Sheridan buckle, with their name. Additionally, those who reach HOF status will receive 50% off all future entries to the Cowboy 200/100! They will also be featured on the Cowboy 200 page on our website. This is a small way of saying thank you for being a staple in the incredible Cowboy Family.

Eventually, we will have people approaching the 2000 total mile mark at Cowboy. We WILL come up with something extraordinary to honor these people when the time comes. There will be another top-of-the-line piece of swag (TBD), and all future entries to Cowboy will be free for life.

Event's current local time: 12:11 PM CT