Fastest Man On All Fours – Guinness World Record.

Whenever a runner can chip nearly a full second off a world record in a sprint race, you know he or she put in an impressive performance.

That was the case this week in Tokyo, where Kenichi Ito shattered his old mark and set a new world record for fastest 100-meter dash run on all fours. Ito completed the race in 16.87 seconds, breaking last year’s time of 17.47 seconds.

Here’s his performance: