| Inns | HS |
| 322-5 | 93 | Old Brightonians v Old Amplefordians | Brighton College Ground, Brighton | 2005 |
| 314-7 | 93 | Old Brightonians v St Edward's Martyrs | St Edward's School Ground, Oxford | 2006 |
| 271-7 | 87 | Old Brightonians v Charterhouse Friars | Brighton College Ground, Brighton | 2010 |
| 270-9 | 82 | Old Brightonians v St Edward's Martyrs | St Edward's School Ground, Oxford | 2004 |
| 268-8 | 86 | Old Brightonians v Rugby Meteors | Rugby School Ground, Rugby | 1969 |
| 262-8 | 66 | Old Brightonians v Haileybury Hermits | Haileybury College Ground, Hertford | 2004 |
| 260-8 | 60 | Old Brightonians v Rugby Meteors | Brighton College Ground, Brighton | 1992 |
| 247 | 76 | Old Brightonians v Harrow Wanderers | Brighton College Ground, Brighton | 2006 |
| 245-6 | 88 | Old Brightonians v Old Malvernians | Brighton College Ground, Brighton | 1974 |
| 245-6 | 81 | Old Brightonians v Old Cheltonians | Brighton College Ground, Brighton | 1999 |
| 241-6 | 70 | Old Brightonians v Old Malvernians | Brighton College Ground, Brighton | 1969 |
| 239-4 | 59 | Old Brightonians v Sherborne Pilgrims | Brighton College Ground, Brighton | 2003 |
| 239 | 59* | Old Brightonians v Oundle Rovers | Brighton College Ground, Brighton | 2007 |
| 222 | 59 | Old Brightonians v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1988 |
| 221-6 | 59 | Old Brightonians v Oundle Rovers | Brighton College Ground, Brighton | 1995 |
| 221-8 | 63 | Old Brightonians v Old Tonbridgians | Brighton College Ground, Brighton | 1998 |
| 218-8 | 39 | Old Brightonians v Old Cliftonians | Clifton College Close Ground, Clifton | 1975 |
| 218 | 52 | Old Brightonians v Eton Ramblers | Brighton College Ground, Brighton | 2001 |
| 217-7 | 70 | Old Brightonians v Old Cliftonians | Brighton College Ground, Brighton | 1993 |
| 216-8 | 61 | Old Brightonians v Oundle Rovers | Brighton College Ground, Brighton | 1997 |
| 213-9 | 68 | Old Brightonians v Stowe Templars | Burton's Court, Chelsea | 1969 |
| 211 | 70 | Old Brightonians v Old Malvernians | Brighton College Ground, Brighton | 2004 |
| 210 | 49 | Old Brightonians v Repton Pilgrims | Repton School Ground, Repton | 2006 |
| 205-5 | 92 | Old Brightonians v Old Wellingtonians | Wellington College, Crowthorne | 1979 |
| 203 | 43 | Old Brightonians v Radley Rangers | Brighton College Ground, Brighton | 2002 |
| 201 | 51 | Old Brightonians v Eton Ramblers | Brighton College Ground, Brighton | 1992 |
| 200 | 86 | Old Brightonians v Downside Wanderers | Downside School, Stratton-on-the-Fosse | 1995 |
| 195 | 55 | Old Brightonians v Downside Wanderers | Brighton College Ground, Brighton | 1977 |
| 192-9 | 82 | Old Brightonians v Felsted Robins | Brighton College Ground, Brighton | 1969 |
| 185 | 55 | Old Brightonians v Repton Pilgrims | Repton School Ground, Repton | 1994 |
