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2025 National Ultra Endurance MTB Epic Race Series

In an effort to elevate the sport of ultra-endurance Mountain Biking to the national stage, The National Ultra Endurance Series was born in 2006.

2025 USA National Ultra Endurance MTB Epic Race Series

National Ultra Endurance (NUE) MTB Series Announces 2025 Schedule

The National Ultra Endurance (NUE) MTB Series schedule is set for 2025, promising a season of unforgettable endurance racing across iconic U.S. courses and thrilling international destinations. With Epic Series and Marathon Series options, the NUE Series offers premier challenges for mountain bikers and opportunities for family adventure.
Once again, for 2025, your top 3 finishes count for overall placing for the Marathon or Epic Series. 

U.S. Highlights

From the rugged desert trails of Utah’s True Grit Epic to the serene forests of Pennsylvania’s Wilderness 101, each NUE race showcases unique terrain and stunning landscapes. Family-friendly venues such as Maine’s Carrabassett Backcountry Challenge and California’s Big Bear Grizzly provide outdoor activities and local attractions that make race weekends enjoyable for all.

Global Adventures

The 2025 season features exciting international destinations:

Gigante de Piedra (Spain): Test your endurance on either the 113 km “Small” race or the 200 km “Large” event amidst the scenic Valencian mountains.
Cruce del Istmo (Panama): Conclude your season with this October race that takes riders through lush rainforests and along breathtaking coastlines, offering a tropical finale to the series.

New Additions

The 2025 schedule welcomes exciting new events:

GloriDays 50 (August 16, 2025) by Zia Rides.
Oak Ass 50 and 100 (October 18, 2025), wrapping up the series with endurance challenges that test even the most seasoned riders brought to you by Chainbuster Racing

Whether you’re racing for glory, enjoying nature, or creating family memories, the NUE Series offers something for everyone.

Date Event Location Routes Diff  Type My Rides
Mar 13 - 15 2025 True Grit Epic Santa Clara UT 15, 50, 84, 170 miles F MTB
Apr 26 2025 Cohutta 100 Copperhill TN 30, 65, 100 miles F MTB
May 17 2025 Mohican MTB 100 Loudonville OH 50, 100, 160 km D MTB
Jun 07 2025 Gigante de Piedra L´Alcora Spain 115, 200 km F MTB
Jul 19 2025 High Cascades 100 Bend OR 100 miles C MTB
Jul 26 2025 Wilderness 101 Coburn PA 62, 100 miles D MTB
Aug 30 - 31 2025 Shenandoah 100100K Mt Solon VA 62, 100 miles D MTB
Sep 13 2025 Big Bear Grizzly 100 Big Bear Lake CA 30, 50 75, 100 km C MTB
Sep 19 - 21 2025 Marji Gesick Ishpeming MI 50, 100 miles C MTB
Oct 12 - 14 2025 Cruce del Istmo Panama City Panama 60, 120k C MTB
Oct 18 2025 Oak Ass 100 Pelham AL 50, 100 miles D MTB
 

The NUE Series is dedicated to providing a level playing field for ALL, Professionals and Amateurs alike! No USAC or any other license is required

 TOP THREE RACES NEEDED to Qualify for series awards!

The NUE Series will recognize and award ALL NUE Series finishers and National Series Champions within the following four divisions: Your RACE AGE is determined as what your age will be as of December 31 of the current race season.

- Men’s Open ( ages 14-99 declaring open)
- Women’s Open( ages 14-99 declaring open)
- Singlespeed ( Men and Women 14-99 pn a one gear bike, declaring SS)
- Masters Men 50+  ( Men 50-99)

- Masters Women 50+ ( Women 50-99)

Eligibility

To become eligible for National Series rankings and rewards, racers need only complete THREE events to receive a national ranking and qualify for series awards. You can enter as many events as you like, allowing racers to improve their ranking throughout the season. Your top three completed races will qualify you for a national ranking and series awards courtesy of NUE Series sponsors. Lowest points within your top three completed races will earn an NUE division title, cash awards, and complimentary entry into all races for next year’s race season. DNF’s do not count.

Scoring

Racers earn points towards the series based on their placing within their chosen NUE division. Racers are not allowed to transfer points from one division to another. Racers will earn points as follows: One point for first place, two points for second place, three for third place, etc. The racer with the lowest overall points, within their division, will be announced the National Ultra Endurance Series Champion with cash and prizes awarded at the final race.

Ties

All ties will be broken at the final event. The tie-breaking event will be held at the Big Bear Grizzly in Big Bear Lake, California. However, racers are not required to enter the tie-breaking event to become eligible for series awards, provided at least three races have been completed. Awards will be mailed to racers who cannot attend the tie-breaking event. All NUE races are weighted equally meaning it is possible to improve your score at the final race AND break the resulting tie in the process. For example: if a racer finishes the final race having already completed two NUE races and that new score results in a tie, the tie is also broken at the race. For example, if a racer has completed three races but improves their top three scores at the final race, resulting in a tie, that tie will be broken at the final race as well.

NUE Race Series Awards 

YEAR END REWARDS: All NUE Series racers who do not earn cash awards and have completed at least three races may qualify for a prize package courtesy of NUE sponsors. Racers who are eligible for awards must submit their mailing address to NoLimit@mohican.net no later than October 31.

NUE Overall Men’s and Women’s Open Champions will receive:

1. Complimentary entry into all NUE Races the next year.
2. Travel awards are included and announced at the award ceremony.

NUE Epic Race Series Purse

US $ 6000

Men’s Open        Women’s Open        

1000                        1000                          

600                            600                           

 400                           400                          

NUE Men’s and Women’s Masters 50+: Prize Package TBA
NUE Singlespeed: Prize Package TBA                         

NUE Marathon Race Series Purse

US$4000.00

 Men’s        Women’s        

 600            600                        

 400            400                       

 200            200                       

NUE Men’s and Women’s Masters 50+: Prize Package TBA
NUE Singlespeed: Prize Package TBA   

For more information, please visit: https://nuemtb.com