First-Class Batting and Fielding in Each Season by John Barclay
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 1970 | (England) | 2 | 3 | 0 | 4 | 4 | 1.33 | 0 | 0 | 0 | |
| 1972 | (England) | 6 | 7 | 1 | 39 | 25 | 6.50 | 0 | 0 | 0 | |
| 1973 | (England) | 7 | 11 | 1 | 111 | 52 | 11.10 | 0 | 1 | 7 | |
| 1974 | (England) | 11 | 21 | 0 | 237 | 28 | 11.28 | 0 | 0 | 10 | |
| 1975 | (England) | 18 | 35 | 1 | 659 | 76 | 19.38 | 0 | 3 | 10 | |
| 1976 | (England) | 21 | 39 | 1 | 1000 | 98 | 26.31 | 0 | 6 | 26 | |
| 1977 | (England) | 25 | 41 | 5 | 1090 | 112 | 30.27 | 2 | 5 | 20 | |
| 1978 | (England) | 23 | 41 | 4 | 1006 | 103 | 27.18 | 1 | 4 | 9 | |
| 1978-79 | (South Africa) | 6 | 8 | 0 | 223 | 50 | 27.87 | 0 | 1 | 1 | |
| 1979 | (England) | 23 | 39 | 5 | 1093 | 104* | 32.14 | 2 | 7 | 18 | |
| 1980 | (England) | 16 | 26 | 3 | 783 | 119 | 34.04 | 2 | 3 | 9 | |
| 1981 | (England) | 23 | 38 | 5 | 874 | 107* | 26.48 | 2 | 3 | 30 | |
| 1982 | (England) | 22 | 33 | 6 | 761 | 95 | 28.18 | 0 | 6 | 25 | |
| 1983 | (England) | 21 | 37 | 3 | 743 | 65 | 21.85 | 0 | 3 | 15 | |
| 1984 | (England) | 26 | 35 | 3 | 761 | 82 | 23.78 | 0 | 4 | 21 | |
| 1985 | (England) | 22 | 17 | 6 | 257 | 37* | 23.36 | 0 | 0 | 12 | |
| 1986 | (England) | 2 | 3 | 0 | 36 | 28 | 12.00 | 0 | 0 | 1 | |