John Walker's Ground, Southgate - Highest Team Totals in List A matches
| 337-5 | Middlesex v Somerset | 2003 | a15204 |
| 335-6 | Gloucestershire v Middlesex | 2005 | a16741 |
| 333-4 | Middlesex v Gloucestershire | 2005 | a16741 |
| 314-5 | Middlesex v Nottinghamshire | 2005 | a16672 |
| 305-9 | Somerset v Middlesex | 2003 | a15204 |
| 283 | Nottinghamshire v Middlesex | 2005 | a16672 |
| 276-6 | Kent v Middlesex | 1991 | a7059 |
| 273-6 | Middlesex v Yorkshire | 2004 | a16020 |
| 272-7 | Gloucestershire v Middlesex | 2002 | a14399 |
| 257-9 | Yorkshire v Middlesex | 2004 | a16020 |
| 257-9 | Middlesex v Surrey | 2006 | a17473 |
| 255-9 | Middlesex v Kent | 1991 | a7059 |