Officials
Qualification Scenario Calculator
What your side needs from its next fixture to reach the net run rate that takes it through.
Enter your season figures so far, then the fixture ahead and the net run rate you need to reach.
Chase it inside
36.1
overs, chasing 231
Current net run rate
+0.200
Target net run rate
+0.400
Target
231
Balls to spare
83
Net run rate then
+0.401
Beyond the calculator
Umpires and scorers using Crickslab get the revised target, the par score and the over rate on screen, signed off and shared in seconds.
- Rain rules applied as the match runs
- Results and points posted automatically
- Live streaming with the score on the picture
How this was worked out
- 1Target to win230 + 1 = 231
- 2Overs bowled countedthe opposition is charged its full 50 over quota
- 3Earliest ball that clears the targetball 217, which is 36.1 overs
How the number is worked out
The formula
Batting first: score needed = (target NRR + runs against / overs against) x overs for - runs for- target NRR
- The net run rate you need to end up on.
- runs for, overs for
- Your season totals, including the match ahead.
- runs against, overs against
- What you have conceded, including the overs the opposition will use in the match ahead.
Chasing works the other way round. The runs are fixed at the target, so the answer is the latest over by which the chase must finish.
A worked example: the last round
Your side has scored 1200 from 250 overs and conceded 1150 from 250, which is a net run rate of +0.200.
To go through you need +0.400. The last fixture is 50 overs a side and the opposition has posted 230.
- 1Target to win230 + 1 = 231
- 2Overs bowled countedthe opposition is charged its full 50 over quota
- 3Net run rate falls as you face more ballsthe runs are fixed at 231 once you pass the target, so every extra over lowers the figure
- 4Find the last over that still workschasing 231 inside 36.1 overs reaches +0.400
Chase 231 within 36.1 overs and you finish on the net run rate you need. Take longer and you win the match but miss qualification, which is the situation this tool exists for.
Rules and edge cases
The situations that change the answer, and the ones most calculators get wrong.
Chasing, the answer is a deadline, not a starting point
Once you pass the target the runs stop, but the overs keep counting. Net run rate therefore falls with every further ball, so what you need is the latest over by which the chase must be finished. A calculator that reports the earliest ball that works will tell you to chase 231 in one over, which is true and useless.
The all out rule applies here too
If you are bowled out, your full quota of overs is charged against you, so a collapse costs far more than the runs alone suggest. Equally, bowling the opposition out credits you with the full quota bowled, which is why a cheap dismissal helps qualification so much.
Batting first, you need a margin rather than a time
Setting a total means the overs are already fixed at the full quota for both sides, so the only lever is runs. The answer comes out as a score to reach, and the margin over the opposition total is what actually moves the figure.
Other results in the round can move the target
This works out one fixture in isolation. Where the side you are chasing in the table is also playing, the net run rate you need can change while your match is going on. Recheck once the other results are in.
Some competitions separate teams on head to head first
Net run rate is not always the first tie break. Many regulations put head to head result, or wins, ahead of it. Check your competition before assuming net run rate is what decides your place.
Frequently asked questions
Take the net run rate of the side you have to overtake, then use this tool to find the score or the over that gets you past it, given the fixture ahead.
For league officials and captains
Qualification scenarios worked out for every team, automatically
Crickslab keeps the standings and net run rate current as results come in, so the question of what each side needs is answered without anyone rebuilding a spreadsheet on a Sunday night.
See tournament managementLast reviewed 17 August 2026. Playing conditions change, so if your competition uses a different rule, its regulations take precedence over anything here.