Women's First-Class Batting and Fielding in Each Season by Betty Sinclair
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1948-49 | (New Zealand) | 1 | 2 | 0 | 23 | 22 | 11.50 | 0 | 0 | 0 | |
| 1949-50 | (New Zealand) | 3 | 6 | 0 | 70 | 43 | 11.66 | 0 | 0 | 1 | |
| 1950-51 | (New Zealand) | 3 | 5 | 2 | 161 | 77 | 53.66 | 0 | 1 | 1 | |
| 1951-52 | (New Zealand) | 3 | 6 | 0 | 97 | 45 | 16.16 | 0 | 0 | 3 | |
| 1952-53 | (New Zealand) | 3 | 6 | 0 | 154 | 46 | 25.66 | 0 | 0 | 1 | |
| 1954 | (England) | 2 | 3 | 0 | 27 | 19 | 9.00 | 0 | 0 | 0 | |
| 1955-56 | (New Zealand) | 3 | 6 | 1 | 145 | 69* | 29.00 | 0 | 2 | 1 | |
| 1956-57 | (New Zealand) | 3 | 6 | 0 | 63 | 45 | 10.50 | 0 | 0 | 0 | |
| 1957-58 | (New Zealand) | 5 | 7 | 0 | 63 | 45 | 9.00 | 0 | 0 | 2 | |
| 1958-59 | (New Zealand) | 4 | 8 | 0 | 112 | 28 | 14.00 | 0 | 0 | 1 | |
| 1959-60 | (New Zealand) | 3 | 6 | 0 | 323 | 162 | 53.83 | 1 | 1 | 1 | |
| 1960-61 | (New Zealand) | 5 | 8 | 1 | 173 | 69 | 24.71 | 0 | 1 | 6 | |
| 1961-62 | (New Zealand) | 3 | 5 | 0 | 168 | 93 | 33.60 | 0 | 1 | 0 | |
| 1962-63 | (New Zealand) | 3 | 4 | 0 | 284 | 172 | 71.00 | 1 | 1 | 1 | |
| 1964-65 | (New Zealand) | 4 | 7 | 0 | 154 | 56 | 22.00 | 0 | 1 | 4 | |
| 1965-66 | (New Zealand) | 5 | 10 | 2 | 194 | 77* | 24.25 | 0 | 1 | 1 | |