Weiser River 50K Ultra & Relay

Event

The Weiser River 50k Ultra & Relay is held in Council, Idaho. The event includes the following options:

• 50K
• 50k Relay
• Adaptive Athletes

Registration closes April 6, 2026. Must register by 04/06/26 by noon to be guaranteed event swag. There are no cancellation refunds; entries may be deferred to the following year by arrangement with the race director.

Runner classifications for the Ultra (minimum age 18) include Men 18-54, Women 18-54, Seniors age 55 and over, and Adaptive Athlete (any gender, all ages).

Course and logistics

The course is a 50-kilometer point-to-point route from Council to Midvale, Idaho, finishing at Midvale Community Park along the Weiser River Trail. The trail is a converted railroad bed and a National Recreation Trail. Surfaces include stony railroad ballast, dirt, and some paved crossings near towns. The route runs alongside the Weiser River, through canyons, and across open farmland, with very little elevation change.

Aid stations serve five legs: Council to Mesa Siding (6.1 miles), Mesa Siding to Goodrich (6.9 miles), Goodrich to Cambridge (9.1 miles), Cambridge to Shoepeg (5.0 miles), and Shoepeg to Midvale (4.1 miles). These aid stations also serve as exchange points for relay teams.

A shuttle runs from Midvale to Council for solo runners only. There is no shuttle from the finish back to the start after the event. Lodging options noted near the event include Trailhead Hostel, Weiser River Trail RV Park, Mundo Hot Springs, Hartland Inn & Motel, and Meadows Valley Motel. Visit the organization's website for the most recent information.