Stavanger Backyard is a backyard ultra held in Dyrsnes, near Stavanger in Rogaland, typically in late September. Participants begin a 6.7 km loop each hour, with the remaining time before the next start available for rest, refueling, changing gear, or preparation. While the event also offers 6.7 km, 12 km, and 50-mile distances, the core format is the hourly lap, embodying the straightforward yet demanding nature of backyard ultras.
The course consists of a combination of gravel and asphalt, distinguishing it from purely road or trail events. Stavanger Backyard limits the race to 12 laps, totaling 50 miles (approximately 80 km). The victor is determined by the speed on the final lap, not by the pace set in earlier laps. Runners have access to stored food, drinks, clothing, and footwear between laps, a crucial element as the familiar loop evolves over many hours.