First-Class Batting and Fielding in Each Season by Francis O'Brien
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1932-33 | (New Zealand) | 1 | 2 | 0 | 30 | 19 | 15.00 | 0 | 0 | 1 | |
| 1933-34 | (New Zealand) | 1 | 2 | 1 | 63 | 52* | 63.00 | 0 | 1 | 2 | |
| 1934-35 | (New Zealand) | 2 | 2 | 0 | 16 | 9 | 8.00 | 0 | 0 | 1 | |
| 1935-36 | (New Zealand) | 4 | 8 | 0 | 209 | 54 | 26.12 | 0 | 1 | 3 | |
| 1936-37 | (New Zealand) | 4 | 6 | 0 | 236 | 113 | 39.33 | 1 | 0 | 2 | |
| 1938 | (England) | 16 | 30 | 1 | 436 | 44 | 15.03 | 0 | 0 | 11 | |
| 1939 | (England) | 24 | 41 | 2 | 870 | 90 | 22.30 | 0 | 4 | 9 | |
| 1939-40 | (New Zealand) | 3 | 5 | 0 | 244 | 86 | 48.80 | 0 | 3 | 0 | |
| 1940-41 | (New Zealand) | 4 | 7 | 0 | 256 | 112 | 36.57 | 2 | 0 | 2 | |
| 1943-44 | (New Zealand) | 4 | 5 | 1 | 188 | 164 | 47.00 | 1 | 0 | 1 | |
| 1944-45 | (New Zealand) | 1 | 1 | 0 | 2 | 2 | 2.00 | 0 | 0 | 0 | |
| 1945-46 | (New Zealand) | 2 | 4 | 0 | 99 | 60 | 24.75 | 0 | 1 | 2 | |