Twenty20 Bowling in Each Season by Todd Astle
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2008-09 | (New Zealand) | 48 | 0 | 66 | 2 | 2-12 | 33.00 | 0 | 0 | 24.00 | 8.25 |
| 2010-11 | (New Zealand) | 24 | 0 | 43 | 0 | | | | | | 10.75 |
| 2012-13 | (New Zealand) | 36 | 0 | 44 | 1 | 1-15 | 44.00 | 0 | 0 | 36.00 | 7.33 |
| 2013-14 | (New Zealand) | | 0 | 0 | 0 | | | | | | 0.00 |
| 2014-15 | (New Zealand) | 204 | 1 | 217 | 8 | 2-10 | 27.12 | 0 | 0 | 25.50 | 6.38 |
| 2015-16 | (New Zealand) | 198 | 0 | 229 | 7 | 2-9 | 32.71 | 0 | 0 | 28.28 | 6.93 |
| 2016-17 | (New Zealand) | 230 | 0 | 270 | 13 | 3-18 | 20.76 | 0 | 0 | 17.69 | 7.04 |
| 2017-18 | (New Zealand) | 64 | 0 | 80 | 3 | 3-18 | 26.66 | 0 | 0 | 21.33 | 7.50 |
| 2018-19 | (United Arab Emirates) | 54 | 0 | 62 | 4 | 2-27 | 15.50 | 0 | 0 | 13.50 | 6.88 |
| 2018-19 | (New Zealand) | 108 | 0 | 138 | 2 | 1-21 | 69.00 | 0 | 0 | 54.00 | 7.66 |
| 2019 | (Sri Lanka) | 24 | 0 | 28 | 3 | 3-28 | 9.33 | 0 | 0 | 8.00 | 7.00 |
| 2019-20 | (New Zealand) | 48 | 0 | 48 | 1 | 1-22 | 48.00 | 0 | 0 | 48.00 | 6.00 |
| 2020-21 | (New Zealand) | 264 | 0 | 307 | 13 | 4-13 | 23.61 | 1 | 0 | 20.30 | 6.97 |
| 2021-22 | (New Zealand) | 246 | 0 | 290 | 10 | 2-13 | 29.00 | 0 | 0 | 24.60 | 7.07 |
| 2021-22 | (India) | 18 | 0 | 34 | 0 | | | | | | 11.33 |
| 2022-23 | (New Zealand) | 246 | 1 | 275 | 11 | 3-24 | 25.00 | 0 | 0 | 22.36 | 6.70 |