First-Class Batting and Fielding Against Each Opponent by Merv Wallace
| Opponent | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| Australia | 2 | 4 | 0 | 45 | 18 | 11.25 | 0 | 0 | 0 | |
| Australians | 3 | 6 | 0 | 208 | 78 | 34.66 | 0 | 1 | 1 | |
| Cambridge University | 2 | 2 | 0 | 268 | 197 | 134.00 | 1 | 1 | 0 | |
| Canterbury | 13 | 22 | 2 | 1141 | 211 | 57.05 | 4 | 5 | 12 | |
| Combined Services | 1 | 1 | 0 | 4 | 4 | 4.00 | 0 | 0 | 3 | |
| Derbyshire | 2 | 4 | 1 | 67 | 23 | 22.33 | 0 | 0 | 1 | |
| England | 10 | 16 | 0 | 386 | 66 | 24.12 | 0 | 5 | 5 | |
| England XI | 1 | 2 | 1 | 91 | 74* | 91.00 | 0 | 1 | 0 | |
| Essex | 1 | 2 | 0 | 122 | 88 | 61.00 | 0 | 1 | 0 | |
| Fiji | 1 | 2 | 0 | 148 | 108 | 74.00 | 1 | 0 | 0 | |
| Glamorgan | 3 | 4 | 1 | 188 | 169* | 62.66 | 1 | 0 | 1 | |
| Gloucestershire | 2 | 4 | 1 | 89 | 39* | 29.66 | 0 | 0 | 0 | |
| HDG Leveson-Gower's XI | 2 | 4 | 1 | 61 | 23* | 20.33 | 0 | 0 | 2 | |
| Ireland | 1 | 1 | 0 | 20 | 20 | 20.00 | 0 | 0 | 0 | |
| Kent | 1 | 2 | 0 | 77 | 55 | 38.50 | 0 | 1 | 0 | |
| Lancashire | 3 | 5 | 0 | 174 | 92 | 34.80 | 0 | 1 | 2 | |
| Leicestershire | 2 | 2 | 0 | 198 | 171 | 99.00 | 1 | 0 | 0 | |
| Marylebone Cricket Club | 10 | 13 | 1 | 479 | 113 | 39.91 | 1 | 1 | 6 | |
| Middlesex | 2 | 3 | 0 | 114 | 58 | 38.00 | 0 | 2 | 1 | |
| Minor Counties | 1 | 2 | 1 | 56 | 33 | 56.00 | 0 | 0 | 0 | |
| New South Wales | 1 | 2 | 0 | 90 | 58 | 45.00 | 0 | 1 | 0 | |
| New Zealand Services | 1 | 1 | 0 | 5 | 5 | 5.00 | 0 | 0 | 0 | |
| New Zealand XI | 1 | 1 | 0 | 0 | 0 | 0.00 | 0 | 0 | 1 | |
| Northamptonshire | 2 | 4 | 0 | 124 | 50 | 31.00 | 0 | 1 | 1 | |
| Nottinghamshire | 1 | 2 | 2 | 66 | 54* | | 0 | 1 | 0 | |
| Otago | 11 | 14 | 1 | 433 | 58 | 33.30 | 0 | 3 | 10 | |
| Oxford University | 2 | 4 | 0 | 158 | 78 | 39.50 | 0 | 1 | 1 | |
| Scotland | 2 | 3 | 0 | 111 | 54 | 37.00 | 0 | 1 | 3 | |
| Sir J Cahn's XI | 1 | 1 | 1 | 54 | 54* | | 0 | 1 | 1 | |
| Somerset | 1 | 2 | 1 | 192 | 115 | 192.00 | 1 | 1 | 0 | |
| South Africa | 2 | 3 | 0 | 29 | 23 | 9.66 | 0 | 0 | 0 | |
| South Australia | 1 | 2 | 0 | 54 | 37 | 27.00 | 0 | 0 | 0 | |
| South Island | 3 | 6 | 0 | 309 | 120 | 51.50 | 1 | 2 | 3 | |
| Surrey | 4 | 6 | 0 | 190 | 69 | 31.66 | 0 | 1 | 1 | |
| Sussex | 2 | 3 | 0 | 186 | 111 | 62.00 | 1 | 1 | 0 | |
| The Rest | 1 | 2 | 1 | 26 | 25 | 26.00 | 0 | 0 | 1 | |
| Victoria | 1 | 2 | 0 | 102 | 63 | 51.00 | 0 | 1 | 0 | |
| Warwickshire | 2 | 3 | 0 | 95 | 48 | 31.66 | 0 | 0 | 2 | |
| Wellington | 16 | 24 | 2 | 1208 | 166 | 54.90 | 3 | 8 | 8 | |
| Worcestershire | 1 | 2 | 0 | 134 | 108 | 67.00 | 1 | 0 | 1 | |
| Yorkshire | 2 | 4 | 0 | 255 | 126 | 63.75 | 1 | 1 | 1 | |