Peterson Ridge Rumble

Peterson Ridge Rumble

Register Sunday, Apr 12, 2026

Distances: 40 Miler, Marathon, 20 Miler

Location: 15200 McKenzie Highway, Sisters, OR

Registration closes: Wed, Apr 8 @ 11:59PM PT

The event now features three distances: the classic 20-mi & 40-mi, and the Trail Marathon. The 40-miler has a start time of 7 a.m., the Marathon starts at 8 a.m., and the 20-mi starts at 9 a.m. Dogs are welcome in all distances.

The Course

The 40 mile is mostly trail with some dirt road sections. The first quarter is gentle uphill, second quarter is gentle downhill, third quarter starts with a gentle up before a couple of long, 2-mile uphill grinders, and the final quarter is gentle downhill (with some sweet views!), making for a fast finish. Mud is very likely, and snowy sections are possible.

The Trail Marathon mimics the 40-mi for the first 25 miles, then finishes with the 20-mi. It is approximately 27-28 miles.

The 20 mile is gentle uphill for the first half, and gentle downhill for the second half. Upon reaching the ridge, there are beautiful views of many of the Central Oregon Cascades peaks.

Start Times

• 40 Miler: 7:00 AM
• Marathon: 8:00 AM
• 20 Miler: 9:00 AM