First-Class Batting and Fielding in Each Season by Gary Robertson
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1979-80 | (New Zealand) | 7 | 6 | 4 | 39 | 21* | 19.50 | 0 | 0 | 3 | |
| 1980-81 | (New Zealand) | 9 | 11 | 3 | 242 | 65 | 30.25 | 0 | 2 | 3 | |
| 1981-82 | (New Zealand) | 4 | 7 | 0 | 54 | 28 | 7.71 | 0 | 0 | 1 | |
| 1982-83 | (New Zealand) | 8 | 12 | 3 | 258 | 96 | 28.66 | 0 | 1 | 7 | |
| 1982-83 | (Australia) | 2 | 3 | 0 | 32 | 18 | 10.66 | 0 | 0 | 0 | |
| 1983-84 | (New Zealand) | 9 | 10 | 0 | 155 | 46 | 15.50 | 0 | 0 | 0 | |
| 1984-85 | (New Zealand) | 8 | 11 | 1 | 222 | 73 | 22.20 | 0 | 1 | 3 | |
| 1984-85 | (Zimbabwe) | 2 | 3 | 0 | 35 | 21 | 11.66 | 0 | 0 | 0 | |
| 1985-86 | (New Zealand) | 10 | 11 | 4 | 303 | 99* | 43.28 | 0 | 3 | 2 | |
| 1986-87 | (New Zealand) | 7 | 7 | 1 | 109 | 50 | 18.16 | 0 | 1 | 1 | |
| 1987-88 | (New Zealand) | 8 | 11 | 2 | 122 | 44 | 13.55 | 0 | 0 | 1 | |
| 1988-89 | (New Zealand) | 8 | 11 | 3 | 262 | 52 | 32.75 | 0 | 2 | 0 | |
| 1989-90 | (New Zealand) | 6 | 8 | 2 | 42 | 11* | 7.00 | 0 | 0 | 1 | |