In the sport of cricket, a century is a score of hundred or more runs by a batsman in one innings. A Twenty20 International (T20I) is an international match between two teams, each having T20I status, as determined by the International Cricket Council. In a T20I, the two teams play a single innings each, which is restricted to a maximum of 20 overs. The format was originally introduced by the England and Wales Cricket Board for the county cricket competition with the first matches contested on 13 June 2003 between the English counties in the Twenty20 Cup. The first T20I took place on 17 February 2005 when Australia defeated New Zealand by 44 runs at Eden Park in Auckland, with Australian captain Ricky Ponting finishing not out on 98.
As of 14 April 2017, from a total of 610 matches, only 23 cricketers from 13 nations have scored a total of 25 centuries. New Zealander Brendon McCullum and West Indian Chris Gayle are the only players to have achieved the feat twice. Of the 25 centuries, only six of them have not resulted in victories. Players from all the teams that have permanent T20I status – with the exception of Zimbabwe – have made centuries and of the teams that have temporary T20I status only Scotland, Afghanistan,Hong Kong and United Arab Emirates have had a player reach triple figures. No players from teams that have previously held temporary T20I status have scored centuries, with Hiral Patel from Canada coming the closest with 88 not out against Ireland in 2010.New Zealand lead the list with four centuries followed by South Africa, India , West Indies and the Australia all with three centuries.