Sisu Backyard Ultra at Lake Rebecca
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Sisu Backyard Ultra at Lake Rebecca, Rockford MN
The Sisu Backyard Ultra is scheduled for September 5, 2026, at Lake Rebecca in Rockford, Minnesota. The listed venue address is 9831 Rebecca Park Trail. Registration is available through the event's registration system; the registration period opens June 12, 2026 and closes September 4, 2026. The published entry fee is 107.68 USD.
The event uses the backyard ultra format: runners complete a 4.167-mile loop every hour, on the hour. A runner must finish each loop within the hour and be ready to start the next loop on time to remain in the race. If a runner does not finish the loop within the hour or cannot start the next loop, their race ends. There is no set finish distance; participants stop when they can no longer complete a loop within the hour.
The Lake Rebecca loop includes a mix of gravel, asphalt, and trail surfaces, and it runs through the day and night. The event offers a sauna and a swim option after running. The description emphasizes perseverance and community as part of the event format and atmosphere. Visit the organization's website for the most recent information.
