Big Dog Backyard Ultra 2025. And this goes for both the national championship and the world championship “big dog’s backyard ultra”, in tennessee. The 2023 big dog’s backyard ultra witnessed extraordinary feats in the world of backyard ultrarunning, as runners defied their physical limits in this grueling competition.
The belgium national event will be held in october 2024 and the winner will get to represent belgium at big dog’s in october 2025. ~930 runners from ~60 countries.