PSA players competing in PSA World Tour events earn points for performance according to the schedule in section 7.4 of The PSA Tour Guide 2011. The PSA World Ranking is used for selection of entries and the determining of seeds in each PSA World Tour event.The total number of points a player accumulates in any fifty-two (52) week period is divided by the number of tournaments played to give an average score (the minimum is currently ten (10) events.)The average score is the factor that dictates where a player is placed in the PSA World Rankings. Points are earned based on the size of an event. Event categories are determined by the total compensation amount. Players automatically received ranking points appropriate to their final placing in an event.PSA World Series Standings have a separate ranking. Points for this are accumulated on a cumulative basis after World Series event. Please click here for more information on World Series.