Semi-finalists confirmed at Women's T20 World Cup

Australia, England and India are among the teams who can take one of four knockout places [Getty Images]The group stage of the Women's T20 World Cup has come to an end.

>Here are how the tables look at the conclusion now the semi-finalists have been confirmed.

>Six-time winners Australia will face West Indies on Tuesday at 14:30 BST followed by England v South Africa on Thursday at 18:30 BST.

>Australia finished unbeaten at the top of Group One after eliminating India in the final group-stage fixture, while England also ended up with five wins from five in Group Two.

>Both semi-finals will be played at The Oval, and the final will be at Lord's on Sunday 5 July.

Group 1 TableGroup 2 TableHow is NRR calculated in cricket?Net run-rate is the common method for differentiating teams level on points in a limited-overs cricket tournament.

>It is a formula that measures a team's average margin of victory, or defeat - a side with several big wins will have a positive net run-rate, while those who have suffered sizeable losses will have a negative one.

>To understand net run-rate, you have to first get your head around run-rate.

>That is the average number of runs scored per over by a team in the innings of one match - so, for example, a score of 140 off 20 overs for Team A equals seven runs per over.

>Net run-rate is then calculated by subtracting the opposition's run-rate from the other team's run-rate.

>So if Team B scored 130 off 20 overs, their run-rate would be 6.5 runs per over.

>Therefore Team A would emerge from the encounter with a positive net-run rate of 0.500 (7 - 6.5), while Team B would take away one of -0.500 (6.5 - 7).

>Once a side has played more than one match in a competition, these figures are calculated cumulatively.

>Let's say Team A scored 160 runs from 20 overs in their next match, then they would have a tournament total of 300 runs, divided by 40 overs - a run-rate of 7.5.

>If their second opponents scored 180 runs from 20 overs, we first add that to Team B's score, making 310 divided by 40 overs - that makes 7.75.

>Take 7.75 from 7.5 and Team A end up with a run-rate of -0.25.

>Are we done with the calculations now? Well, not quite...

>If a team loses and is bowled out early, then we wouldn't want to divide their score by the overs they played, as that would potentially deliver them a higher run-rate than their opponent.

>Therefore if a team is bowled out inside their allotted overs, their run-rate is calculated by dividing their runs by the maximum overs they could have batted.

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