| Extras |
| 49 | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1995 |
| 44 | Old Westminsters v Old Alleynians | Dulwich College Ground, Dulwich | 2005 |
| 44 | Old Westminsters v Marlborough Blues | Vincent Square, Westminster | 2006 |
| 41 | Old Westminsters v Harrow Wanderers | Vincent Square, Westminster | 2008 |
| 37 | Old Westminsters v Charterhouse Friars | Charterhouse School, Godalming | 2000 |
| 37 | Old Westminsters v Old Brightonians | Vincent Square, Westminster | 2010 |
| 33 | Old Westminsters v Downside Wanderers | Vincent Square, Westminster | 2002 |
| 28 | Old Westminsters v Old Alleynians | Vincent Square, Westminster | 2004 |
| 27 | Old Westminsters v Marlborough Blues | Vincent Square, Westminster | 1991 |
| 25 | Old Westminsters v Old Brightonians | Brighton College Ground, Brighton | 2001 |
| 23 | Old Westminsters v Old Cliftonians | Vincent Square, Westminster | 1997 |
| 22 | Old Westminsters v Uppingham Rovers | Middle Field Pitch 1, Uppingham School | 1990 |
| 21 | Old Westminsters v Old Brightonians | Vincent Square, Westminster | 2004 |
| 20 | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1970 |
| 19 | Old Westminsters v Old Whitgiftians | Vincent Square, Westminster | 1976 |
| 19 | Old Westminsters v Marlborough Blues | Marlborough College Ground, Marlborough | 1980 |
| 19 | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1982 |
| 19 | Old Westminsters v Lancing Rovers | Vincent Square, Westminster | 1994 |
| 18 | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1975 |
| 18 | Old Westminsters v Felsted Robins | Vincent Square, Westminster | 1986 |
| 18 | Old Westminsters v Old Whitgiftians | Whitgift School, Croydon | 1993 |
| 17 | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1973 |
| 17 | Old Westminsters v St Edward's Martyrs | Vincent Square, Westminster | 2001 |
| 17 | Old Westminsters v Radley Rangers | Radley College Bigside Ground, Abingdon | 2007 |
| 15 | Old Westminsters v Downside Wanderers | Vincent Square, Westminster | 1978 |
| 14 | Old Westminsters v Eton Ramblers | Vincent Square, Westminster | 1967 |
| 13 | Old Westminsters v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1980 |
| 13 | Old Westminsters v Charterhouse Friars | Vincent Square, Westminster | 1991 |
| 13 | Old Westminsters v Old Alleynians | Dulwich College Ground, Dulwich | 1998 |
| 12 | Old Westminsters v Stowe Templars | Stowe School Ground, Stowe | 1985 |
| 12 | Old Westminsters v Shrewsbury Saracens | Vincent Square, Westminster | 1996 |
| 12 | Old Westminsters v Old Alleynians | Vincent Square, Westminster | 1999 |
| 12 | Old Westminsters v Old Wellingtonians | Vincent Square, Westminster | 2009 |
