The world record for the Fastest 100 meters running on all fours has been spectacularly broken by 22-year-old Ryusei Yonee of Japan, who clocked a blistering time of 14.55 seconds.
Yonee’s phenomenal performance shaves more than a full second off the previous record, solidifying his place as the world’s premier quadrupedal sprinter.
The record has a long history, particularly among Japanese athletes, demonstrating a steady march of improvement over the last two decades:
| Athlete | Country | Time | Date |
| Kenichi Ito | Japan | 18.58 seconds | November 2008 |
| Kenichi Ito | Japan | 17.47 seconds | November 2012 |
| Kenichi Ito | Japan | 15.71 seconds | November 2015 |
| Collin McClure | USA | 15.66 seconds | June 2022 |
| Ryusei Yonee | Japan | 14.55 seconds | September 2025 |
Ryusei Yonee’s new time marks a significant milestone, representing a four-second improvement on the inaugural 2008 record.
Yonee’s passion for the unconventional sport began in middle school after a teacher remarked that animals on all fours could run faster than humans on two legs. Since then, he has dedicated himself to mastering the technique, closely observing the locomotion of four-legged animals like dogs, cats, and monkeys.
“I will train harder than ever before. I want to do whatever I can to grow the all-four sports, wherever that may be,” Yonee stated, signaling his intent to further promote this unique athletic discipline.
