To date, 76 nations have played the format, including all Test-playing nations. T20 International rankings In November 2011, the ICC released the first Twenty20 International rankings for the men's game, based on the same system as the Test and ODI rankings. The rankings cover a two- to three-year period, with matches since the most recent 1 August weighted fully, matches in the preceding 12 months weighted two-thirds, and matches in the 12 months preceding that weighted one-third. To qualify for the rankings, teams must have played at least eight Twenty20 Internationals in the ranking period. Until 2018, the ICC did not maintain a separate Twenty20 ranking for the women's game, instead aggregating performance over all three forms of the game into one overall women's teams ranking. However, in October, the ICC announced that the women's ranking would be split between ODIs and T20Is, and released both tables shortly thereafter. Domestic professional T20 leagues This is a list of the current Twenty20 domestic competitions in several of the leading cricket countries. See also List of Twenty20 cricket records List of Twenty20 International records 100-ball cricket T10 cricket, the 10-over format of cricket Major League Cricket References External links Cricinfo – Twenty20 records IPL News 2021