Peterson Ridge Rumble
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Event overview
The Peterson Ridge Rumble is a trail running event near Sisters, Oregon, held on April 12, 2026. All races start and finish at Sisters Middle School. The event offers three distances:
- 40 miles
- Trail marathon
- 20 miles
The event is a fundraiser for the Sisters High School Cross Country team and makes an annual donation to Sisters Trails Alliance. Total entrant capacity for all distances combined is 500. Registration for the 2026 Rumble opens in November 2025 and will be handled through UltraSignup. Packet pickup is available at a local bike shop the day before the race and at Sisters Middle School on race morning.
Course and logistics
All courses use the Peterson Ridge and Metolius-Windigo multi-use trails. The 40-mile course is mostly trail with some dirt road and about 2,700 feet of total vertical gain. The marathon shares the 40-mile route to about mile 25 and has about 1,700 feet of vert. The 20-mile route includes ridge views of Central Oregon peaks and about 1,200 feet of vert. Aid coverage varies by distance: the 40-mile has five full aid stations and two limited stations, the marathon has three full and two limited, and the 20-mile has four full aid stations. Drop bags are allowed at specified stations for the longer distances. Top overall, masters, and veteran finishers receive awards, and all finishers receive commemorative finisher socks. Visit the organization's website for the most recent information.