| Inns | HS |
| 288-6 | 88 | Old Wykehamists v Old Malvernians | Malvern College Ground, Malvern | 1970 |
| 275-8 | 86 | Old Wykehamists v Old Amplefordians | Ridding Field, Winchester | 1981 |
| 264-9 | 76 | Old Wykehamists v Haileybury Hermits | Ridding Field, Winchester | 2006 |
| 262-9 | 65* | Old Wykehamists v Old Wellingtonians | Wellington College, Crowthorne | 2014 |
| 255 | 50 | Old Wykehamists v Stowe Templars | Ridding Field, Winchester | 2021 |
| 251-6 | 68 | Old Wykehamists v Harrow Wanderers | Ridding Field, Winchester | 1974 |
| 246-7 | 70 | Old Wykehamists v St Edward's Martyrs | St Edward's School Ground, Oxford | 2011 |
| 246-6 | 61* | Old Wykehamists v Old Alleynians | Dulwich College Ground, Dulwich | 2015 |
| 245-7 | 76 | Old Wykehamists v Radley Rangers | Ridding Field, Winchester | 2012 |
| 236 | 65 | Old Wykehamists v Old Tonbridgians | Tonbridge School Ground, Tonbridge | 2007 |
| 235-9 | 43 | Old Wykehamists v Stowe Templars | Ridding Field, Winchester | 2014 |
| 234-5 | 86 | Old Wykehamists v Old Cliftonians | Ridding Field, Winchester | 1988 |
| 233-8 | 76 | Old Wykehamists v Old Merchant Taylors | Merchant Taylors' School Ground, Northwood | 2019 |
| 231-7 | 67 | Old Wykehamists v Old Whitgiftians | Ridding Field, Winchester | 1974 |
| 226 | 50 | Old Wykehamists v Radley Rangers | Radley College Bigside Ground, Abingdon | 2009 |
| 222-5 | 78 | Old Wykehamists v Downside Wanderers | Ridding Field, Winchester | 1976 |
| 220-9 | 63 | Old Wykehamists v Old Cliftonians | Ridding Field, Winchester | 1970 |
| 219-9 | 81* | Old Wykehamists v Bradfield Waifs | Bradfield College, Reading | 1981 |
| 217 | 55 | Old Wykehamists v Oundle Rovers | Oundle School Ground, Oundle | 1979 |
| 213-9 | 96 | Old Wykehamists v Radley Rangers | Radley College Bigside Ground, Abingdon | 1999 |
| 212-8 | 61 | Old Wykehamists v Marlborough Blues | Ridding Field, Winchester | 1999 |
| 210-6 | 79 | Old Wykehamists v Oundle Rovers | Oundle School Ground, Oundle | 1987 |
| 207-8 | 47 | Old Wykehamists v Stowe Templars | Stowe School Ground, Stowe | 1994 |
| 199-9 | 62 | Old Wykehamists v Old Tonbridgians | Burton's Court, Chelsea | 1970 |
| 199-9 | 63 | Old Wykehamists v Repton Pilgrims | Repton School Ground, Repton | 1976 |
| 197-8 | 77 | Old Wykehamists v Shrewsbury Saracens | Ridding Field, Winchester | 1982 |
| 193 | 53 | Old Wykehamists v Old Malvernians | Ridding Field, Winchester | 1983 |
| 190-9 | 54 | Old Wykehamists v Old Malvernians | Ridding Field, Winchester | 1984 |
| 187 | 45 | Old Wykehamists v Marlborough Blues | Ridding Field, Winchester | 1978 |
| 185 | 41 | Old Wykehamists v Charterhouse Friars | Burton's Court, Chelsea | 1981 |
| 185-8 | 55 | Old Wykehamists v Eton Ramblers | Upper Club, Eton College | 1985 |
