Its a simple solution to the staticians nightmare of the Official status given to World XI & Afro-Asian One day matches. Simply put them under a new category of ICC Offical Matches. So when a bowler takes 3 wickets and you put down statistics of How many 3 wickets in an innings and against who, you credit the bowler with an additional 3 wicket credit. And in the column of nations against whom it is achieved you put in ICC Offical Matches. Similarly for a batsmen for centuries / runs scored etc.