Twenty20 Batting and Fielding in Each Season by Nathan Smith
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 2016-17 | (New Zealand) | 2 | 0 | | | | | | | 0 | |
| 2018-19 | (New Zealand) | 9 | 4 | 2 | 11 | 9* | 5.50 | 0 | 0 | 0 | |
| 2019-20 | (New Zealand) | 6 | 2 | 0 | 28 | 22 | 14.00 | 0 | 0 | 2 | |
| 2020-21 | (New Zealand) | 5 | 4 | 0 | 30 | 16 | 7.50 | 0 | 0 | 3 | |
| 2021-22 | (New Zealand) | 11 | 8 | 1 | 77 | 38* | 11.00 | 0 | 0 | 4 | |
| 2022-23 | (New Zealand) | 8 | 7 | 0 | 104 | 35 | 14.85 | 0 | 0 | 1 | |
| 2023-24 | (New Zealand) | 10 | 9 | 3 | 111 | 26 | 18.50 | 0 | 0 | 6 | |
| 2024 | (England) | 9 | 8 | 2 | 144 | 51* | 24.00 | 0 | 1 | 5 | |
| 2024-25 | (New Zealand) | 3 | 2 | 0 | 28 | 17 | 14.00 | 0 | 0 | 2 | |
| 2025 | (England) | 10 | 3 | 3 | 15 | 10* | | 0 | 0 | 4 | |
| 2026 | (West Indies) | 2 | 2 | 1 | 17 | 10* | 17.00 | 0 | 0 | 0 | |
| 2026 | (Bangladesh) | 2 | 1 | 1 | 2 | 2* | | 0 | 0 | 1 | |