W.A.K.O. World Championships 2007 in Belgrade were the joint 16th edition of the W.A.K.O. world championships - the second event would be held later that year in Coimbra, Portugal. They were for amateur male and female kickboxers and covered the following categories; K-1, Low-Kick and Light-Contact. Weight classes for men ranged from light bantamweight (51 kg or 112 lb) to super heavyweight (over 91 kg or 200.6 lb), while the women's ranged from featherweight (52 kg or 114.6 lb) to super heavyweight (over 70 kg or 154 lb). More information on the categories, weight classes and rules is provided in the various sections below. In total there were 1085 athletes at the championships, representing sixty countries including China (taking part for the very first time), fighting in 49 tournaments.