Highest Score in Each Batting Position for Middlesex
| 1 | 331* | JDB Robertson | v Worcestershire | County Ground, New Road, Worcester | 1949 | | f18432 |
| 2 | 250* | FA Tarrant | v Essex | County Ground, Leyton | 1914 | | f9082 |
| 3 | 285* | JW Hearne | v Essex | County Ground, Leyton | 1929 | | f12676 |
| 4 | 301* | EH Hendren | v Worcestershire | Tipton Road, Dudley | 1933 | | f14343 |
| 5 | 261* | JD Carr | v Gloucestershire | Lord's Cricket Ground, St John's Wood | 1994 | | f41254 |
| 6 | 244 | JWM Dalrymple | v Surrey | The Brit Oval, Kennington | 2004 | | f47984 |
| 7 | 174 | MW Gatting | v Kent | St Lawrence Ground, Canterbury | 1991 | | f39501 |
| 8 | 164* | BJM Scott | v Northamptonshire | Uxbridge Cricket Club Ground, Uxbridge | 2008 | | f50860 |
| 9 | 154 | RW Nicholls | v Kent | Lord's Cricket Ground, St John's Wood | 1899 | | f5115 |
| 10 | 120* | RE More | v Yorkshire | Bramall Lane, Sheffield | 1904 | | f6463 |
| 11 | 74* | W Roche | v Kent | Lord's Cricket Ground, St John's Wood | 1899 | | f5115 |
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