Bruce Lee's one inch punch once struck a man back "at least five meters (16.4 feet)", nearly 200 times the distance his fist traveled.
The legendary martial artist perfected the technique at the Long Beach International Karate Championships in 1964.
Lee learned the technique from his Wing Chun training in Hong Kong and he once unleashed it to a crazy degree.
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Per Grunge.com, the fighter struck a man that "[flew] back at least five meters (16.4 feet)."
That is astonishing power to be shown by a man.
The sheer power on display also marveled the show announcer, who bragged that Lee's punch had more force behind it than a car moving at 48 kpm.
It's crazy to think that one man can generate so much power.
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As a result, it comes as no surprise that he only ended up being involved in one 'real' fight on camera.
We've all seen Lee fight on film countless times, but what is much rarer is an intimate glimpse of him sparring in his natural habitat.
Lee regularly sparred with his students, but only one of his MMA fights was ever recorded - and now it's been restored by YouTube channel Beerdy: Bruce Lee Central.
Beerdy explains: "This is the only recording of Bruce Lee in a real MMA fight. He's fighting one of his top students"
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It's not 100% clear where the clip was filmed, but it was likely in California, where Lee had his school for Jeet Kune Do, and where Wong studied the discipline.
In the stunning footage, we see Wong repeatedly attempt to get close to Lee, who keeps his opponent just out of range with his nimble footwork. His lightning reactions and fluid movements are on full display - Wong's attacks are deflected whenever he gets close.
Ted Wong was a martial arts practitioner who was best known for his time spent studying under the watch of Lee. He was born in Hong Kong in 1937 and died in 2010, aged 73.
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In the clip he takes a few swift blows to the face and body, but to his credit he keeps going.
The description on YouTube reads: "This is the only recording of Bruce Lee in a real MMA fight.
"He's fighting Ted Wong here, one of his top students.
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"They are wearing protective gear because they were NOT ALLOWED to fight without them. Those were the state rules at the time.
"If not for those rules I can guarantee you that Bruce would have fought bare-knuckled."
Bruce Lee died of a cerebral edema in 1973 at the age of 32, but his fighting style is still taught around the world to this day.
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