The most martial arts sword cuts performed on a mat before it falls down is 7 by Isao Machida (Japan) in Minoo, Osaka, Japan, on 21 March 2004.
Please note: Comments below may relate to previous holders of this record.

Who: Isao Machii
What: Most martial arts sword cuts to one mat (Suegiri)
Where: Japan
When: 21 Mar 2004
The most martial arts sword cuts performed on a mat before it falls down is 7 by Isao Machida (Japan) in Minoo, Osaka, Japan, on 21 March 2004.
Please note: Comments below may relate to previous holders of this record.