- Who
- Isao Machii
- What
- 6.7 centimetre(s)
- Where
- Japan (Tokyo,Akasaka, Minato-ku)
- When
The smallest object cut by sword at over 700 km/h (434.96 mph) is a tennis ball 6.7 cm (2.63 in) in diameter, which was cut by Isao Machii (Japan) at a speed of 708 km/h (440 mph) on the set of Tobidase Kagakukun (TBS) in Akasaka, Minato, Tokyo, Japan, on 8 September 2011.