First-Class Batting and Fielding in Each Season by Nick Kelly
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 2015-16 | (New Zealand) | 2 | 4 | 0 | 45 | 21 | 11.25 | 0 | 0 | 3 | |
| 2016-17 | (New Zealand) | 6 | 11 | 2 | 196 | 56* | 21.77 | 0 | 1 | 5 | |
| 2017-18 | (New Zealand) | 4 | 4 | 0 | 110 | 40 | 27.50 | 0 | 0 | 5 | |
| 2018-19 | (New Zealand) | 2 | 4 | 0 | 104 | 36 | 26.00 | 0 | 0 | 2 | |
| 2019-20 | (New Zealand) | 5 | 9 | 0 | 271 | 118 | 30.11 | 1 | 0 | 1 | |
| 2020-21 | (New Zealand) | 8 | 15 | 2 | 579 | 94 | 44.53 | 0 | 6 | 5 | |
| 2021-22 | (New Zealand) | 8 | 15 | 2 | 675 | 234* | 51.92 | 1 | 4 | 6 | |
| 2022-23 | (New Zealand) | 8 | 16 | 0 | 470 | 110 | 29.37 | 2 | 2 | 4 | |
| 2023-24 | (New Zealand) | 8 | 14 | 1 | 605 | 138 | 46.53 | 1 | 4 | 12 | |
| 2023-24 | (Australia) | 2 | 4 | 0 | 129 | 64 | 32.25 | 0 | 1 | 2 | |
| 2024-25 | (New Zealand) | 4 | 8 | 1 | 551 | 161 | 78.71 | 3 | 1 | 4 | |