First-Class Batting and Fielding in Each Season by Merv Wallace
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1933-34 | (New Zealand) | 3 | 5 | 0 | 124 | 57 | 24.80 | 0 | 1 | 3 | |
| 1934-35 | (New Zealand) | 4 | 7 | 0 | 182 | 68 | 26.00 | 0 | 1 | 2 | |
| 1935-36 | (New Zealand) | 7 | 9 | 0 | 532 | 113 | 59.11 | 2 | 3 | 8 | |
| 1936-37 | (New Zealand) | 4 | 6 | 1 | 302 | 133 | 60.40 | 1 | 1 | 3 | |
| 1937 | (Scotland) | 1 | 2 | 0 | 89 | 54 | 44.50 | 0 | 1 | 1 | |
| 1937 | (England) | 23 | 40 | 3 | 1532 | 115 | 41.40 | 2 | 11 | 11 | |
| 1937 | (Ireland) | 1 | 1 | 0 | 20 | 20 | 20.00 | 0 | 0 | 0 | |
| 1937-38 | (Australia) | 3 | 6 | 0 | 246 | 63 | 41.00 | 0 | 2 | 0 | |
| 1937-38 | (New Zealand) | 3 | 4 | 1 | 153 | 56 | 51.00 | 0 | 2 | 0 | |
| 1938-39 | (New Zealand) | 4 | 6 | 1 | 270 | 105 | 54.00 | 1 | 1 | 3 | |
| 1939-40 | (New Zealand) | 3 | 4 | 0 | 297 | 211 | 74.25 | 1 | 0 | 3 | |
| 1940-41 | (New Zealand) | 1 | 1 | 0 | 1 | 1 | 1.00 | 0 | 0 | 0 | |
| 1943-44 | (New Zealand) | 1 | 1 | 0 | 5 | 5 | 5.00 | 0 | 0 | 0 | |
| 1944-45 | (New Zealand) | 3 | 6 | 1 | 245 | 108 | 49.00 | 1 | 1 | 3 | |
| 1945-46 | (New Zealand) | 6 | 8 | 0 | 346 | 78 | 43.25 | 0 | 3 | 3 | |
| 1946-47 | (New Zealand) | 6 | 9 | 0 | 405 | 166 | 45.00 | 1 | 2 | 4 | |
| 1947-48 | (New Zealand) | 3 | 6 | 0 | 385 | 120 | 64.16 | 2 | 2 | 1 | |
| 1948-49 | (New Zealand) | 4 | 6 | 2 | 182 | 113 | 45.50 | 1 | 0 | 4 | |
| 1949 | (England) | 26 | 40 | 6 | 1700 | 197 | 50.00 | 5 | 7 | 10 | |
| 1949 | (Scotland) | 1 | 1 | 0 | 22 | 22 | 22.00 | 0 | 0 | 2 | |
| 1949-50 | (New Zealand) | 3 | 6 | 0 | 209 | 86 | 34.83 | 0 | 1 | 1 | |
| 1950-51 | (New Zealand) | 5 | 8 | 1 | 275 | 68 | 39.28 | 0 | 3 | 2 | |
| 1952-53 | (New Zealand) | 3 | 5 | 0 | 127 | 90 | 25.40 | 0 | 1 | 1 | |
| 1956-57 | (New Zealand) | 1 | 2 | 0 | 35 | 19 | 17.50 | 0 | 0 | 1 | |
| 1957-58 | (New Zealand) | 1 | 1 | 0 | 0 | 0 | 0.00 | 0 | 0 | 1 | |
| 1960-61 | (New Zealand) | 1 | 2 | 1 | 73 | 44 | 73.00 | 0 | 0 | 1 | |