If the team that's batting second successfully chases down the total, they win by the amount of wickets they had in hand instead. In this case, if England won in that last over, getting to say 9/258, they would still have one wicket in hand, and that would be the margin.
ArthurFunkyMiller t1_jacts0v wrote
Reply to comment by tyrannomachy in New Zealand defeat England by 1 run in the 2nd Test Match at Wellington by IntoThePeople
If the team that's batting second successfully chases down the total, they win by the amount of wickets they had in hand instead. In this case, if England won in that last over, getting to say 9/258, they would still have one wicket in hand, and that would be the margin.