Most Runs in a Season for Middlesex
| 1353 | DL Haynes | 1990 |
| 1210 | DL Haynes | 1992 |
| 996 | PN Weekes | 2005 |
| 932 | JM Brearley | 1980 |
| 912 | MA Roseberry | 1992 |
| 883 | PN Weekes | 2004 |
| 873 | MW Gatting | 1984 |
| 868 | MR Ramprakash | 1990 |
| 866 | MA Roseberry | 1990 |
| 844 | MW Gatting | 1991 |
| 837 | PN Weekes | 2003 |
| 835 | PN Weekes | 1996 |
| 830 | PN Weekes | 1995 |
| 825 | CT Radley | 1975 |
| 821 | NG Featherstone | 1975 |
| 812 | CT Radley | 1977 |
| 802 | MW Gatting | 1980 |
| 792 | MW Gatting | 1989 |
| 782 | MW Gatting | 1990 |
| 781 | JL Langer | 1998 |
| 764 | MR Ramprakash | 1995 |
| 763 | CT Radley | 1980 |
| 758 | CT Radley | 1986 |