Mac Forest Trail Run
About the race
Come join us for the 30th running of the Mac Forest Trail Runs. Beautiful trails and logging roads will take you through the majestic McDonald Forest.
Whether you are an experienced trail runner or a first timer, you will enjoy the race.
Proceeds from the races benefit local high school cross-country athletes and teams, and further the mission of the Oregon Running Foundation to help move the lives of youth forward through the power of running.
By providing opportunities, inspiration and shoes, ORF strives to help youth turn their potential into fulfillment.
Registration and race day details
Registration opens November 26, 2025. Get the kids out for a great morning with a reduced registration fee for youth 18 and under.
- Did you miss the online registration? You can register the morning of the race.
- Day of race registration will be limited to cash or check. Make checks payable to: Oregon Running Foundation.
- Registration and Bib pick up will begin at 7:30 am.
- We do have limits on the number of participants, so don't wait.
- 15K will start at 9:00am.
- 5K will start at 9:30am.
Rules and environment
- No dogs or strollers permitted in the race(s).
- Help us Stay Green: the 2026 race will be cupless.
Cancellation policy
Athletes can cancel their registration, but no refund is given.
Race entry fees and permit transfers are not refunded. If the race is cancelled, no refunds are given. We will do our best to offer credit to next year's race.
The course
15K
5K
The course takes you through a combination of single-track trails and logging roads in OSU's McDonald Forest. It is challenging, with scenic views on a sunny day and otherwise plenty of mud. If the clouds part, views of the Cascades, the Coast Range and Soap Creek Valley can be seen.
Course aid stations
- Two aid stations, at the Forestry Cabin and the Cap House.
Race weekend schedule
Location
Corvallis, OR, USA Open in Google Maps
City insight: Corvallis
Corvallis is a city in central western Oregon and the county seat of Benton County, with a population of 61,087 in 2023. It is home to the main campus of Oregon State University and is the westernmost city in the contiguous 48 states with more than 50,000 residents. Winters are mild and wet and summers are warm and dry, so spring and early autumn are the best seasons for running or racing.
Know from the athletes
Good to know
Are dogs or strollers allowed?
No Dogs or Strollers permitted in the race(s).
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