First-Class Batting and Fielding in Each Season by Mike Harris
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1964 | (England) | 2 | 3 | 2 | 54 | 35 | 54.00 | 0 | 0 | 1 | |
| 1965 | (England) | 5 | 10 | 0 | 94 | 30 | 9.40 | 0 | 0 | 1 | |
| 1966 | (England) | 19 | 36 | 3 | 962 | 114 | 29.15 | 1 | 5 | 6 | |
| 1967 | (England) | 29 | 47 | 6 | 1715 | 160 | 41.82 | 4 | 10 | 16 | |
| 1968 | (England) | 18 | 27 | 3 | 560 | 109 | 23.33 | 1 | 1 | 4 | |
| 1969 | (England) | 26 | 40 | 4 | 1164 | 149 | 32.33 | 1 | 9 | 23 | |
| 1970 | (England) | 25 | 49 | 4 | 1914 | 120 | 42.53 | 3 | 14 | 16 | |
| 1971 | (England) | 26 | 45 | 1 | 2238 | 177 | 50.86 | 9 | 6 | 16 | |
| 1971-72 | (South Africa) | 2 | 4 | 0 | 26 | 14 | 6.50 | 0 | 0 | 3 | |
| 1972 | (England) | 18 | 31 | 1 | 1020 | 174* | 34.00 | 2 | 8 | 19 | |
| 1973 | (England) | 22 | 40 | 2 | 1655 | 201* | 43.55 | 4 | 8 | 13 | |
| 1974 | (England) | 23 | 41 | 3 | 1690 | 133 | 44.47 | 6 | 7 | 25 | 5 |
| 1975 | (England) | 21 | 37 | 2 | 1223 | 163 | 34.94 | 4 | 4 | 40 | 2 |
| 1975-76 | (New Zealand) | 7 | 11 | 1 | 376 | 83 | 37.60 | 0 | 2 | 13 | |
| 1976 | (England) | 21 | 31 | 6 | 1006 | 140* | 40.24 | 1 | 6 | 35 | 4 |
| 1977 | (England) | 14 | 22 | 4 | 250 | 37 | 13.88 | 0 | 0 | 15 | 3 |
| 1978 | (England) | 23 | 36 | 4 | 1315 | 148* | 41.09 | 3 | 6 | 13 | |
| 1979 | (England) | 21 | 38 | 4 | 1368 | 133* | 40.23 | 2 | 10 | 9 | |
| 1980 | (England) | 12 | 20 | 2 | 289 | 65 | 16.05 | 0 | 2 | 11 | |
| 1981 | (England) | 8 | 10 | 4 | 162 | 44* | 27.00 | 0 | 0 | 8 | |
| 1982 | (England) | 2 | 3 | 2 | 115 | 43* | 115.00 | 0 | 0 | 1 | |