Japanese man breaks speed record for running on all fours
Written by Angie Sharma on September 29, 2025
A Japanese man channeled his inner quadruped and broke a Guinness World Record by running 328 feet in 14.55 seconds — on all fours.
Ryusei Yonee, 22, broke the recordĀ for fastest 100 meters running on all fours, beating American Collin McClure’s 2022 time of 15.66 seconds.
Yonee said he has been running on all fours since middle school.
“The teacher said that animals on all-fours can run faster. That made me think: I could be the fastest human on all fours,” he told Guinness World Records.
Yonee said he prepared for the record by observing how four-legged animals like dogs, cats and monkeys run.
He said it took some time to adapt his technique to running on a track.
“I was mostly training in the sand,” he told Guinness World Records. “The track has a lot more rebound, which changed my running form.”