First-Class Bowling in Each Season by Andy Roberts
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| 1967-68 | (New Zealand) | | 0 | 0 | 0 | | | | |
| 1968-69 | (New Zealand) | | 0 | 0 | 0 | | | | |
| 1969-70 | (New Zealand) | 286 | 8 | 100 | 4 | 2-16 | 25.00 | 0 | 0 |
| 1970-71 | (New Zealand) | 8 | 1 | 0 | 1 | 1-0 | 0.00 | 0 | 0 |
| 1971-72 | (New Zealand) | 176 | 4 | 73 | 4 | 2-27 | 18.25 | 0 | 0 |
| 1972-73 | (New Zealand) | 72 | 1 | 34 | 1 | 1-10 | 34.00 | 0 | 0 |
| 1973-74 | (New Zealand) | 80 | 1 | 44 | 1 | 1-6 | 44.00 | 0 | 0 |
| 1974-75 | (New Zealand) | 72 | 4 | 24 | 2 | 1-1 | 12.00 | 0 | 0 |
| 1975-76 | (New Zealand) | 183 | 5 | 78 | 6 | 2-27 | 13.00 | 0 | 0 |
| 1976-77 | (New Zealand) | 1100 | 28 | 422 | 19 | 5-30 | 22.21 | 1 | 0 |
| 1976-77 | (Pakistan) | 164 | 5 | 76 | 3 | 1-18 | 25.33 | 0 | 0 |
| 1976-77 | (India) | 300 | 11 | 129 | 1 | 1-53 | 129.00 | 0 | 0 |
| 1977-78 | (New Zealand) | 744 | 16 | 300 | 8 | 4-65 | 37.50 | 0 | 0 |
| 1978-79 | (New Zealand) | 304 | 11 | 159 | 5 | 2-42 | 31.80 | 0 | 0 |
| 1979-80 | (New Zealand) | 762 | 36 | 362 | 8 | 2-11 | 45.25 | 0 | 0 |
| 1980-81 | (New Zealand) | 204 | 5 | 80 | 1 | 1-24 | 80.00 | 0 | 0 |
| 1981-82 | (New Zealand) | 402 | 30 | 136 | 6 | 2-12 | 22.66 | 0 | 0 |
| 1982-83 | (New Zealand) | 708 | 40 | 257 | 11 | 4-45 | 23.36 | 0 | 0 |
| 1983-84 | (New Zealand) | 498 | 23 | 246 | 3 | 1-15 | 82.00 | 0 | 0 |