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===Ball difference===
Ball difference (BD) is the number of balls remaining at the point of victory.<ref>[http://pandimi.wordpress.com/2011/02/19/bd/ Ball difference]</ref> For a team winning batting second, BD would be the number of balls remaining. For a team winning having batted first, BD would be the number of balls between the precise delivery when the beaten team was outscored and the end of their innings (either the end of the overs or until the team were all out).<ref>[http://pandimi.wordpress.com/balldiff/ Ball difference]</ref><ref>[http://testmatchsofa.com/Forum/yaf_postst22_A-simple-alternative-to-Net-Run-Rate.aspx Test Match Sofa A simple alternative to Net Run Rate]</ref> For the losing team, BD is the negative of the winning team's BD.
However, like the current NRR calculation, BD takes no account of wickets lost, so can produce similarly unjust results. In the example above from the 2013 Champions Trophy Group A, New Zealand's narrow victory over Sri Lanka would have a BD of +81, whereas Sri Lanka's comfortable victory over England would have a BD of only +17.
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