First-Class Bowling in Each Season by Alby Roberts
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| 1927-28 | (New Zealand) | | 0 | 0 | 0 | | | | |
| 1928-29 | (New Zealand) | 153 | 3 | 82 | 3 | 3-4 | 27.33 | 0 | 0 |
| 1929-30 | (New Zealand) | 48 | 2 | 25 | 0 | | | | |
| 1930-31 | (New Zealand) | 60 | 0 | 35 | 1 | 1-29 | 35.00 | 0 | 0 |
| 1931-32 | (New Zealand) | 114 | 1 | 76 | 0 | | | | |
| 1932-33 | (New Zealand) | 438 | 20 | 151 | 2 | 1-29 | 75.50 | 0 | 0 |
| 1933-34 | (New Zealand) | 240 | 13 | 76 | 5 | 3-49 | 15.20 | 0 | 0 |
| 1934-35 | (New Zealand) | 907 | 44 | 309 | 12 | 3-39 | 25.75 | 0 | 0 |
| 1935-36 | (New Zealand) | 1374 | 70 | 495 | 16 | 3-33 | 30.93 | 0 | 0 |
| 1936-37 | (New Zealand) | 870 | 49 | 257 | 12 | 4-61 | 21.41 | 0 | 0 |
| 1937 | (Ireland) | 60 | 3 | 11 | 2 | 2-8 | 5.50 | 0 | 0 |
| 1937 | (England) | 3912 | 169 | 1614 | 60 | 5-47 | 26.90 | 2 | 0 |
| 1937-38 | (Australia) | 328 | 9 | 107 | 0 | | | | |
| 1938-39 | (New Zealand) | 416 | 13 | 125 | 6 | 4-49 | 20.83 | 0 | 0 |
| 1939-40 | (New Zealand) | 548 | 6 | 180 | 8 | 4-60 | 22.50 | 0 | 0 |
| 1940-41 | (New Zealand) | 721 | 14 | 201 | 5 | 2-36 | 40.20 | 0 | 0 |
| 1944-45 | (New Zealand) | 570 | 33 | 195 | 9 | 4-73 | 21.66 | 0 | 0 |
| 1945-46 | (New Zealand) | 1081 | 72 | 254 | 9 | 4-54 | 28.22 | 0 | 0 |
| 1946-47 | (New Zealand) | 666 | 32 | 260 | 5 | 3-56 | 52.00 | 0 | 0 |
| 1947-48 | (New Zealand) | 588 | 39 | 145 | 9 | 5-62 | 16.11 | 1 | 0 |
| 1948-49 | (New Zealand) | 240 | 15 | 104 | 1 | 1-58 | 104.00 | 0 | 0 |
| 1949-50 | (New Zealand) | 192 | 9 | 57 | 2 | 1-15 | 28.50 | 0 | 0 |
| 1950-51 | (New Zealand) | 18 | 1 | 3 | 0 | | | | |