T20 Chase at Halfway: Win % by Required Rate and Wickets Down
Required rate and wickets down at halfway tell you most of what a T20 chase will do next. Here is how often each branch actually came off.

If a T20 chasing side needs a given run rate from the last 10 overs with a given number of wickets down, how often does it win?
- A94.6%Chase won, needing under 7 an over at 10
- B43.8%Chase won, needing 9-9.9 an over
- C5.2%Chase won, needing 12+ an over
- D86.1%Chase won when 20+ ahead at 10 overs
At the halfway mark of a T20 chase, the scoreboard asks two questions: how many an over from here, and with how many wickets in hand? I looked at 6,132 full-length chases still alive at that point and sorted them by both. The answer is steeper than most in-play punters assume, and wickets matter nearly as much as the rate itself.
Needing under 7 an over, chasing sides won 94.6% of the time. Needing 9-9.9, that fell to 43.8%, and needing 12 or more it was just 5.2%. These halfway reads sit behind a lot of what I write on my free cricket predictions page, and the charts below show why I trust them.
Branch AEvery extra run an over cuts the chase sharply
Across all chases still going at halfway, the chasing side won 50.9%, close to a coin flip. That average hides a slope. Under 7 an over, chasers won 94.6% of 1,404 chases; at 7-7.9 it was 74.3%, at 8-8.9 it was 60.4%, and by 9-9.9 the defenders were already favourites with the chase won 43.8%.
Beyond that the drop keeps going: 28.4% at 10-10.9, 18.1% at 11-11.9 and 5.2% across 964 chases needing 12 or more. In my experience, the band between 8 and 10 an over is where the in-play mood swings hardest, and it is exactly where the chase flips from favourite to underdog.
View the data: won, tied or lost by required rate at halfway
| Won | Tied | Lost | |
|---|---|---|---|
| Under 7 an over ยท 1,404 | 94.6% | 0.5% | 4.9% |
| 7-7.9 an over ยท 742 | 74.3% | 1.8% | 24.0% |
| 8-8.9 an over ยท 795 | 60.4% | 2.3% | 37.4% |
| 9-9.9 an over ยท 847 | 43.8% | 1.7% | 54.5% |
| 10-10.9 an over ยท 750 | 28.4% | 1.3% | 70.3% |
| 11-11.9 an over ยท 614 | 18.1% | 0.7% | 81.3% |
| 12+ an over ยท 964 | 5.2% | 0.7% | 94.1% |
Ties sat between 0.5% and 2.3% depending on the band. That is small, but it matters if your market settles a tie as a loss.
Branch BWickets in hand decide the middle rate bands
Split the same chases by wickets down and the picture sharpens. Needing 7-7.9 an over, sides at 0-2 down won 84.6%, while sides at 4 or more down won only 39.4%. At 8-8.9 the gap was similar: 66.8% at 0-2 down against 37.6% at 4 or more down.
Needing 10-10.9, the chase won 42.2% at 0-2 down, 23.9% at 3 down and 14.2% at 4 or more down. Each wicket strips away the batting that has to absorb the death overs.
Points with fewer than 50 chases are left blank.
View the data: chase win % by required rate at 10 overs
| 0-2 down | 3 down | 4+ down | |
|---|---|---|---|
| Under 7 | 97.3% | 92.9% | 80.1% |
| 7-7.9 | 84.6% | 67.8% | 39.4% |
| 8-8.9 | 66.8% | 61.9% | 37.6% |
| 9-9.9 | 56.0% | 40.8% | 21.5% |
| 10-10.9 | 42.2% | 23.9% | 14.2% |
| 11-11.9 | 33.1% | 19.9% | 6.4% |
| 12+ | 11.4% | 6.5% | 2.4% |
The comparison I keep coming back to: a side two down needing 10-10.9 won slightly more often than a side four down needing just 7-7.9. A gettable rate with a fragile lower order is not the comfortable position it looks.
Branch CHalfway scorecard comparison tells a matching story
Some viewers ignore the required rate and simply compare scores with the first innings at the same stage. That works too. Chasers 20 or more runs ahead won 86.1% of 1,037 chases, while those 20 or more behind won 10.9% of 800.
Level to 9 ahead, the chasing side won 57.1% of 1,218 chases, a clear edge rather than an even split. Being 10-19 behind dropped the win rate to 29.5%.
Chase counts in brackets.
View the data: chase win % by runs ahead or behind at 10 overs
| Chasing side's 10-over score compared with the side batting first at the same point | |
|---|---|
| 20+ behind (800) | 10.9% |
| 10-19 behind (895) | 29.5% |
| 1-9 behind (1,185) | 41.4% |
| Level to 9 ahead (1,218) | 57.1% |
| 10-19 ahead (997) | 69.2% |
| 20+ ahead (1,037) | 86.1% |
My reading is that the chaser knows the exact target and can pace the back half, while the side batting first had to guess at par. Matching the opponent's halfway score is quietly worth more than it looks.
Branch DFair odds turn each halfway state into prices
The table converts each band into a fair price: one divided by the historical rate, with no margin. The main caveat is that no match prices exist for these games, and pitch, ground size and team strength are not controlled, so these are frequency benchmarks, not market prices or a system.
Under 7 an over, the chase is 1.06 and the defence 20.35. At 9-9.9, the chase is 2.28 and the defence 1.83, with a 95% range of ยฑ3.3. At 12+ the chase is 19.28 and the defence 1.06.
| Required rate | Chases | Chase won | 95% range | Fair: chase | Fair: defend |
|---|---|---|---|---|---|
| Under 7 | 1,404 | 94.6% | ยฑ1.2 | 1.06 | 20.35 |
| 7-7.9 | 742 | 74.3% | ยฑ3.1 | 1.35 | 4.17 |
| 8-8.9 | 795 | 60.4% | ยฑ3.4 | 1.66 | 2.68 |
| 9-9.9 | 847 | 43.8% | ยฑ3.3 | 2.28 | 1.83 |
| 10-10.9 | 750 | 28.4% | ยฑ3.2 | 3.52 | 1.42 |
| 11-11.9 | 614 | 18.1% | ยฑ3.0 | 5.53 | 1.23 |
| 12+ | 964 | 5.2% | ยฑ1.4 | 19.28 | 1.06 |
I use these as a reference line. If an in-play price sits well away from the fair figure, I want a conditions reason, such as heavy dew, a short boundary or a deep batting order, before I act on it.
If this happensโฆ
Needing 7-7.9, a side at 4 or more down won only 39.4% against 84.6% at 0-2 down. Read the wickets column first.
At 9-9.9 the chase was won 43.8%, so defenders are fair favourites at 1.83. Do not treat it as a coin flip.
Use the fair figures, such as 2.28 for the chase at 9-9.9, as a reference and only deviate with a clear pitch or dew reason.
Questions bettors ask
How often do T20 teams win a chase needing 12 an over from halfway?
Rarely. Needing 12 or more an over at halfway, the chase was won only 5.2% of the time across 964 chases, a fair price of 19.28.
Is a T20 chase favoured if it is level with the first innings at halfway?
Yes, slightly. Chasing sides level to 9 runs ahead at the same stage won 57.1% of 1,218 chases.
How much do wickets matter in a T20 chase at halfway?
A lot. Needing 10-10.9 an over, chases won 42.2% at 0-2 down but 14.2% at 4 or more down.
