played between May 2012 and April 2013 switched to 50% weighting. This happens overnight, so can result in teams changing positions in the ranking table despite not playing. Each time two teams play another match, the rankings table is updated as follows, based on the ratings of the teams immediately before they played. To determine the teams' new ratings after a particular match, first calculate the points earned from the match: If the gap between the ratings of the two teams before the match was less than 40 points, then: If the gap between the ratings of the two teams before the match was at least 40 points, then: Each team's rating is equal to its total points scored divided by the total matches played. (Series are not significant in these calculations). Add the match points scored to the points already scored (in previous matches as reflected by the Table), add one to the number of matches played, and determine the new rating. Points earned by teams depend on the opponent's ratings, therefore this system needed to assign base ratings to teams when it started. See also a detailed example at: ICC Men's T20I Team Rankings#Example See also ICC Men's Test Team Rankings ICC Men's T20I Team Rankings World Cricket League International cricket ICC Women's ODI and T20I rankings ICC Player Rankings References External links ICC Men's ODI Team Rankings ODI Championship Sports world rankings