Thetford Back Yard Ultra
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The Thetford Back Yard Ultra (TBYU) endurance race starts on 12 September 2026 at High Lodge in Thetford Forest, Brandon. A Backyard Ultra is a form of ultramarathon race where competitors must consecutively run a 6.71km / 4.17 mile course in less than one hour, every hour. When each lap is completed, the remaining time…