Wednesday, Feb 28 by Cor Hemmers. Fights take place both as single matches between two fighters known as 'superfights' and as part of tournaments. Four-man tournaments are the standard, with eight-man tournaments also staged on occasion. The tournaments take one of two forms: either they are World Championship Tournaments, with the division's world title on the line, or they are 'Contender' tournaments, with the winner earning a spot in the next upcoming World Championship Tournaments. Sanctioned by ISKA. Langue English.