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Two Runners Just Broke the Backyard Ultra World Record
22 October 2026

Two Runners Just Broke the Backyard Ultra World Record

Free Outside

About

At the time we recorded this, Belgian runners Ivo Steyaert and Merijn Geerts had been running for 123 hours—five days and three hours—and had each covered about 512 miles. They’d just broken the previous backyard ultra world record, and Belgium was the only team with runners still going in the World Team Championship.


I’ve done two backyard ultras myself: I won one in 2022 and was the assist in another in 2023. The format is simple: run 4.167 miles every hour, on the hour, and keep going until only one runner is left. In this bonus episode, I check in with Frank “the Tank” live from Belgium. Frank has gone more than 100 yards himself and was part of Belgium’s record-setting team. This year, he’s watching from the other side as a crew member and part of the media team.


We talk about how the World Team Championship works, what Ivo and Merijn do in the minutes between loops, how they help each other through rough patches, and why Belgium has become such a force in backyard running. Frank shares stories from the race, including a sleep-deprived runner who thought he was making cash drops, and gives us a close-up look at what it takes to keep going when you’ve already run more than 500 miles.


Then I talk about why the backyard format can be such a useful way to pace a long effort—and why the prospect of doing another one is starting to sound pretty tempting.


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