Table tennis is governed by the worldwide organization International Table Tennis Federation, founded in 1926. ITTF currently includes 218 member associations.[1] The table tennis official rules are specified in the ITTF handbook.[2] Table tennis has been an Olympic sport since 1988,[3] with several event categories. In particular, from 1988 until 2004, these were: men's singles, women's singles, men's doubles and women's doubles. Since 2008, a team event has been played instead of the doubles