ROO Race Series

ROO Race Series

ROO Race Series is a two day race weekend on private ranchland near Clancy, Montana, scheduled for June 25–26, 2027. The event combines multiple trail distances, a backyard ultra format, and a venue designed to keep runners, crews, and spectators together throughout the weekend.

Distances offered include:

• ROO Backyard Ultra: one 4.17 mile loop every hour until one runner remains
• 50K: mountain ultramarathon across Montana backcountry
• 25K: longer trail distance for sustained racing
• 10K: shorter trail distance on ranch terrain
• Little ROO Mile: one mile kids race

The Backyard Ultra runs as repeated hourly loops; competitors must return to the starting corral before the next hour to continue. The 2026 inaugural Backyard Ultra lasted 39 hours, produced a winning distance of 163.8 miles, recorded 494 laps, and awarded a $10,000 prize purse. In that event 41 runners started and 23 became ultramarathon finishers.

ROO offers event experiences beyond racing. Crew Showdown is a free team competition with 3–4 scoring athletes per team. ROO Base Camp provides a pre set camping rental package for Backyard Ultra competitors and their crews for $250; the package includes one tent, two chairs, one table, one cooler, one bag of ice, and on site setup before arrival. Base Camp availability is limited and is offered exclusively to Backyard Ultra competitors and their crews.

The layout keeps runners and crews together at a single corral so spectators can follow every loop without relocating across the course. Visit the organization's website for the most recent information.

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