Owyhee Off-Road Challenge Half Marathon, 10k, & 5k

Owyhee Off-Road Challenge 2025
55k, Half, 10k, & 5k
March 22, 2025

Ready to experience fresh air, wide-open spaces, and beautiful landscape? Take a trip to Adrian, Oregon (just 54-miles northwest of Boise, Idaho) and experience the rugged beauty of the Owyhees and the hospitality of a small-town. The Owyhee Off-Road Challenge 55k, Half Marathon, 10k, & 5k offer breathtaking views of the Snake River and Owyhee Valleys with the friendliest volunteers this side of the Rockies. All proceeds go to help purchase equipment for the new Adrian School District track and to support Adrian youth programs.

"Honestly one of the best, toughest, and most fun races I've ever ran in 20+ years of endurance events. Your volunteers were top notch. Every time I thanked them at an aid station they thanked me for coming out. Outstanding event from top to bottom." E.H. Middleton, Idaho

Check out the 2024 race day photos on our Facebook page.

Great footage of the 2023 OORC from Idaho News 6.

"This was an amazing experience! Great course support, beautiful views, and a challenging but fun route! It is definitely one of my favorite races. I also think that this half marathon course is giving Robie Creek a run for its money for the title of toughest half in the northwest! I can't wait for next year!" ~B. Campbell, Gresham, Oregon

Join us for the 10th Annual Owyhee Off-Road Challenge on March 22nd, 2025! The 55k will start at 7:00 a.m. and the Half will begin at 10:00 a.m. (Mountain Time Zone) in Adrian, OR, just an hour drive from Boise, ID.

Start Location:
Two Rivers Community Park
(Owyhee Watershed Council)
106 Owyhee Street
Adrian, OR 97901

Hosted by the Adrian Sports Boosters to raise funds for equipment and supplies for Adrian's new track and to support Adrian youth programs.

Start times are Mountain Daylight Time
55k start time: 7:00 a.m. MDT
Half start time: 10:00 a.m
10k start time: 10:30 a.m.
5k start time: 11:00 a.m.

55k Registration Fees:

$85.00 per person by February 28
$95.00 per person March 1st - 21st. (Online registration closes at 11:59 pm Mountain Time on March 20th.)
NO Race Day Registration for the 55k

Half Marathon Registration Fees:

$60.00 per person by February 28
$70.00 per person March 1st - 21st. (Online registration closes at 11:59 pm Mountain Time on March 20th.)
$85.00 Race Day Registration

10k Registration Fees

$50.00 per person by February 28
$60.00 per person March 1st - 20th. (Online registration closes at 11:59 pm Mountain Time on March 20th.)
$75.00 Race Day Registration

5k Registration Fees

$40.00 per person by February 28
$50.00 per person March 1st - 20th. (Online registration closes at 11:59 pm Mountain Time on March 20th.)
$65.00 Race Day Registration

"Such an amazing race! Congratulations on a fantastic event! I cannot commend you enough for the hard work it took to make this happen. The efficient check in, the well marked course, the friendly cheerleaders/volunteers, the well placed water and bathroom stations, and the beautiful course all made for a super off-road challenge! You guys did an amazing job and I hope to see this event continue! Thank you!" ~S.L. Smith