The Hundred - who needs what to qualify?

The Hundred group stages are reaching a climax.

BBC Sport looks at who needs what to progress in the men's and women's competitions.

What is The Hundred format?

All teams play eight group matches in The Hundred with the top three progressing to the knockouts.

The table toppers automatically reach the final at Lord's on 31 August.

Second and third face each other in the Eliminator at The Kia Oval on 30 August, with the winner progressing to the final.

Teams in fourth to eighth are eliminated.

Men's competition

Remaining fixtures (all times BST): Fire v Rockets (24 Aug, 14:30), Originals v Phoenix (24 Aug, 18:00), Invincibles v Spirit (25 Aug, 18:30), Superchargers v Originals (26 Aug, 18:30), Rockets v Phoenix (27 Aug, 18:30), Brave v Fire (28 Aug, 18:30).

Oval Invincibles are guaranteed of at least a place in the Eliminator. They are best placed to secure a spot in the final if they win their remaining game against Spirit because of their superior net run-rate.

Northern Superchargers have also qualified for the knockout stages at least. Victory over Originals in their last group game could put them in the final, depending on results elsewhere and net run-rate.

Trent Rockets are best placed to join Invincibles and Superchargers in the knockouts - they just need one win from two remaining matches to do so. They could still qualify with two defeats, depending on results elsewhere and net run-rate.

If Rockets beat Fire on Sunday, then all the teams currently in fourth to eighth will be eliminated.

Southern Brave and London Spirit need to win their one remaining match each, hope other results go their way and it will then come down to net run-rate.

Birmingham Phoenix, Manchester Originals and Welsh Fire need to win both their remaining games, while also relying on an unlikely set of results involving the teams above them, and then it will also still come down to net run-rate.

Women's competition

Remaining fixtures (all times BST): Fire v Rockets (24 Aug, 11:00), Originals v Phoenix (24 Aug, 14:30), Invincibles v Spirit (25 Aug, 15:00), Superchargers v Originals (26 Aug, 15:00), Rockets v Phoenix (27 Aug, 15:00), Brave v Fire (28 Aug, 15:00).

Southern Brave have secured a spot in the final with a game to spare after winning all seven of their matches so far.

Northern Superchargers will qualify for the Eliminator if they win their remaining match against Originals. They could still qualify if they lose, if other results go their way.

Manchester Originals will qualify for the knockouts if they win both their remaining games. They could qualify with just one more win, depending on other results.

London Spirit need to win their remaining game against Invincibles, hope other results go their way and it could then come down to net run-rate.

Trent Rockets have a very slim chance of reaching the Eliminator. They need to win both remaining games, hope Spirit and Originals don't pick up any more points and it will then come down to net run-rate.

Oval Invincibles, Welsh Fire and Birmingham Phoenix have been eliminated.

How is net run-rate calculated?

If teams are level on points at the end of the group stage their finishing position is decided by net run-rate.

Run-rate is the average number of runs scored per over by a team in their entire innings - so, for example, a score of 200 off 100 balls means your net run-rate is 2.

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

For both teams, the run tally is divided by the balls faced. This is their run-rate. So:

Team A: 200/100 = 2

Team B: 100/100 = 1

The winning side will therefore have a positive net run-rate, and the losers a negative net run-rate.

In a tournament, net run-rate is worked out by taking the average runs per 100 balls scored by that team in each game and subtracting the average runs per 100 balls scored against them.

If a team is bowled out inside their allotted 100 balls, their run-rate is calculated by dividing the runs by the maximum overs they could have batted - 100 balls in the case of this tournament.