The ICC Player Rankings are a widely followed system of rankings for international cricketers based on their recent performances. The current sponsor is Reliance Mobile who have signed a deal with the ICC that will last until 2015.
The ratings were developed at the suggestion of Ted Dexter in 1987. The intention was to produce a better indication of players' current standing in the sport than is provided by comparing their averages. Career averages are based on a player's entire career and do not make any allowance for match conditions or the strength of the opposition, whereas the ratings are biased towards recent form and account for match conditions and the quality of the opponent using statistical measures.
Initially the rankings were for Test cricket only, but separate One Day International rankings were introduced in 1998. Both sets of rankings have now been calculated back to the start of those forms of the game. The rankings include the top 10 test, ODI and T20 batsmen, bowlers and all-rounders based on the rating of each player.