S-3.1, r. 11 - Regulation respecting combat sports

Full text
105. A contestant shall be declared “knocked down” where, as a result of his opponent’s actions,
(1)  a part of his body, other than his feet, comes into contact with the ring mat following a legal blow from his opponent; or
(2)  only the ropes are preventing him from falling to the ring mat.
O.C. 662-95, s. 105; O.C. 392-2004, s. 8.