The 2011–12 international cricket season was from October 2011 to April 2012 and included a number of Test, One Day International and Twenty20 International series.[1] The season saw the launch of the ICC T20I Championship in October 2011. England, the reigning ICC World Twenty20 champions, were ranked number one.[2] England had their first defences of the ICC Test Championship number-one ranking they acquired at home in August 2011. While they retained the spot throughout the season,[3][4] they showed their weaknesses in Asian conditions as they were whitewashed in a three-Test series against Pakistan.[5] Australia were the best ranked in the ICC ODI Championship throughout the season but their rating dropped from 130 to 123 after average performances in the season.[6][7] They would drop to number four in the following season.[8]