| 6-44 | RS Rutnagur | Old Westminsters v Old Cliftonians | Vincent Square, Westminster | 1989 |
| 5-? | R Pain | Old Westminsters v Bradfield Waifs | Vincent Square, Westminster | 1971 |
| 5-15 | TWJ Bailey | Old Westminsters v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1980 |
| 5-17 | JP Barkhan | Old Westminsters v Old Blundellians | Vincent Square, Westminster | 1992 |
| 5-19 | D Biswas | Old Westminsters v Old Alleynians | Dulwich College Ground, Dulwich | 2005 |
| 5-29 | AD Campbell | Old Westminsters v Old Alleynians | Vincent Square, Westminster | 2004 |
| 5-46 | AL Yuille | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1975 |
| 4-28 | R Pain | Old Westminsters v Old Malvernians | Vincent Square, Westminster | 1968 |
| 4-28 | JFW Sanderson | Old Westminsters v Felsted Robins | Vincent Square, Westminster | 1986 |
| 4-34 | MD Cornes | Old Westminsters v St Edward's Martyrs | Vincent Square, Westminster | 2001 |
| 4-39 | DS Perrett | Old Westminsters v Haileybury Hermits | Haileybury College Ground, Hertford | 1969 |
| 4-41 | R Pain | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1970 |
| 3-17 | RS Rutnagur | Old Westminsters v Old Amplefordians | Vincent Square, Westminster | 1984 |
| 3-21 | AP Macwhinnie | Old Westminsters v Old Whitgiftians | Vincent Square, Westminster | 1976 |
| 3-24 | JF Mortimer | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1975 |
| 3-24 | JFW Sanderson | Old Westminsters v Old Amplefordians | Vincent Square, Westminster | 1984 |
| 3-27 | AD Campbell | Old Westminsters v St Edward's Martyrs | Vincent Square, Westminster | 2001 |
| 3-29 | R Pain | Old Westminsters v Sherborne Pilgrims | Vincent Square, Westminster | 1977 |
| 3-32 | DS Perrett | Old Westminsters v Eton Ramblers | Vincent Square, Westminster | 1967 |
| 3-32 | AJT Willoughby | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1973 |
| 3-32 | JR Hall | Old Westminsters v Charterhouse Friars | Vincent Square, Westminster | 1991 |
| 3-33 | JP Barkhan | Old Westminsters v Radley Rangers | Vincent Square, Westminster | 1980 |
| 3-36 | DS Perrett | Old Westminsters v Rugby Meteors | Vincent Square, Westminster | 1973 |
| 3-38 | R Pain | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1982 |
| 3-41 | CJ Broadhurst | Old Westminsters v Uppingham Rovers | Vincent Square, Westminster | 1972 |
| 3-44 | BMI Hyam | Old Westminsters v Harrow Wanderers | Vincent Square, Westminster | 2008 |
| 3-46 | IC Macwhinnie | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1982 |
| 3-48 | AJT Willoughby | Old Westminsters v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1970 |
| 3-54 | AJT Willoughby | Old Westminsters v Bradfield Waifs | Bradfield College, Reading | 1976 |
| 3-56 | RS Rutnagur | Old Westminsters v Marlborough Blues | Vincent Square, Westminster | 1991 |
| 3-58 | R Pain | Old Westminsters v Haileybury Hermits | Haileybury College Ground, Hertford | 1983 |
| 3-59 | MD Cornes | Old Westminsters v Old Alleynians | Vincent Square, Westminster | 2004 |
