First-Class Bowling in Each Season by Will Williams
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| 2012-13 | (New Zealand) | 72 | 3 | 27 | 1 | 1-27 | 27.00 | 0 | 0 |
| 2015-16 | (New Zealand) | 243 | 7 | 115 | 4 | 3-13 | 28.75 | 0 | 0 |
| 2016-17 | (New Zealand) | 288 | 16 | 98 | 6 | 4-37 | 16.33 | 0 | 0 |
| 2017-18 | (New Zealand) | 1064 | 58 | 457 | 19 | 4-16 | 24.05 | 0 | 0 |
| 2018-19 | (New Zealand) | 981 | 39 | 438 | 13 | 3-60 | 33.69 | 0 | 0 |
| 2019-20 | (New Zealand) | 1081 | 38 | 456 | 17 | 4-52 | 26.82 | 0 | 0 |
| 2020-21 | (New Zealand) | 1655 | 99 | 528 | 31 | 5-26 | 17.03 | 2 | 0 |
| 2021-22 | (New Zealand) | 1401 | 86 | 538 | 25 | 3-21 | 21.52 | 0 | 0 |
| 2022 | (England) | 1756 | 93 | 614 | 36 | 5-41 | 17.05 | 1 | 0 |
| 2023 | (England) | 2169 | 92 | 904 | 39 | 4-23 | 23.17 | 0 | 0 |
| 2024 | (England) | 1323 | 42 | 606 | 16 | 3-26 | 37.87 | 0 | 0 |