McDonald Forest 50K

30TH ANNUAL RACE !!!

This will be the 30th running of “The Mac” one of the oldest ultrarunning races in Oregon. A true old school gem, it is run primarily in Oregon State University’s McDonald Forest. Come experience the smooth lovingly-maintained singletrack trails. The race boasts one of the sweetest finishes of any race, a pine needle cushioned downhill trail. The forest is in full bloom in early May; the dogwoods are glowing and the delicate calypso orchids dot the undergrowth. There are scenic views of the Cascades, the Coast Range and Soap Creek Valley. This year we will have more single track trails and will return to McCulloch Peak, the highest point in McDonald Forest. There will be at least $400 in prize money.

Corvallis Area Trailrunners is the 501(c)(3) public charity that distributes all the race proceeds which support local middle and high school cross-country teams, the Corvallis Mountain Rescue Unit and the OSU Research Forest.

The race will start at 8:00 am at the OSU Forestry Cabin (Peavy Arboretum). There is a 7:00 am early start (if you take the 7:00 am early start your minimum ultrasignup time will be 7 hours and 30 minutes).

Registration

• The race is limited to 300 entrants.
• If you are under 18 years old a parent or guardian must sign a waiver at checkin.
• NO DOGS.
• There will be a 7:00 am EARLY START.
• HELP US GO GREEN - THE 2026 RACE WILL BE CUPLESS!

Entry

• Registration fee is $125.
• Student registration fee is $95 (enter coupon code STUDENT).
• Veteran registration fee is $95 (enter coupon code VETERAN).
• Registration fee includes 4-well stocked aid stations; post-race soup, bread, fruit, cookies and drinks; a pair of Injinji socks and a Territory Run hoody and race shirt.
• REGISTER BY APRIL 1 TO GUARANTEE A SHIRT, HOODY and pair of Injinji socks!
• $50 is refundable for withdrawal prior to March 31, 2026.
• No entry transfers or carryovers to 2027.

CORVALLIS TRAIL SERIES

The McDonald Forest 50K will be part of the Corvallis Trail Series. The series includes: McDonald Forest 15K, Alsea Falls Spring Fling, Marys Peak Trail Run, Run for the Hills and Condor.

RACE TRACKING

There will be live tracking for the race. The link for race tracking will be updated race week.

TRAIL MIX FUND

Do you want to race but can’t afford the entry fee? Are you a part of the BIPOC or LGBTQ+ community? Apply to the Trail Mix Fund to have your registration fee waived.