• noun a run scored from a ball (other than a wide or no-ball) that is deflected off some part of the striker’s body, apart from his hand holding the bat, when he is attempting either to hit the ball with the bat or to avoid being hit by the ball. If neither of these conditions is met (i.e. if the umpire believes the batsman deliberately used his body to deflect the ball) the umpire should call ‘dead ball’ and no runs will be allowed. Any runs legitimately accruing as leg-byes – whether actually run or coming from a boundary – are credited to the batting side as ‘extras’, but not to the individual batsman, and the umpire signals a leg-bye to the scorers by lifting a leg and touching the knee with his hand.
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