Isao Machii is a Iaido master from Kawanishi, Hyōgo, Japan. His skills as a master swordsman have landed him a number of Guinness World Records: fastest tennis ball (820 km/h) cut by sword and "fastest 1,000 martial arts sword cuts" to name just two.
His speed and accuracy with a katana is a thing of wonder. Put on display once again in this video, after watching two speeding baseballs whiz past him, he non-nonchalantly cuts a third ball in half, fired at him at 161 kilometers per hour. Amazing.
