| Inns | HS |
| 227 | 42 | Marlborough Blues v Downside Wanderers | Marlborough College Ground, Marlborough | 1986 |
| 206-9 | 44 | Marlborough Blues v Old Westminsters | Vincent Square, Westminster | 1991 |
| 204-9 | 46 | Marlborough Blues v Old Wellingtonians | Burton's Court, Chelsea | 1980 |
| 193 | 33 | Marlborough Blues v Shrewsbury Saracens | Shrewsbury School, Shrewsbury | 2007 |
| 180 | 39 | Marlborough Blues v Old Malvernians | Marlborough College Ground, Marlborough | 2006 |
| 179-8 | 37* | Marlborough Blues v Old Whitgiftians | Marlborough College Ground, Marlborough | 1986 |
| 177-9 | 33 | Marlborough Blues v Old Whitgiftians | Marlborough College Ground, Marlborough | 1995 |
| 175-9 | 37 | Marlborough Blues v Old Wykehamists | Ridding Field, Winchester | 1992 |
| 175 | 34 | Marlborough Blues v Old Whitgiftians | Marlborough College Ground, Marlborough | 2003 |
| 169-7 | 45 | Marlborough Blues v Charterhouse Friars | Marlborough College Ground, Marlborough | 1980 |
| 168 | 30 | Marlborough Blues v Charterhouse Friars | Charterhouse School, Godalming | 1997 |
| 167 | 44 | Marlborough Blues v Bradfield Waifs | Bradfield College, Reading | 1978 |
| 166 | 37 | Marlborough Blues v Old Cliftonians | Clifton College Close Ground, Clifton | 1990 |
| 164 | 40 | Marlborough Blues v Haileybury Hermits | Marlborough College Ground, Marlborough | 1983 |
| 158-6 | 33 | Marlborough Blues v Old Merchant Taylors | Durrants Sports Ground, Croxley Green | 2001 |
| 157-7 | 44 | Marlborough Blues v Old Wykehamists | Ridding Field, Winchester | 1986 |
| 155 | 37 | Marlborough Blues v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1994 |
| 155-4 | 46* | Marlborough Blues v Old Merchant Taylors | Durrants Sports Ground, Croxley Green | 2005 |
| 153 | 41 | Marlborough Blues v Shrewsbury Saracens | Marlborough College Ground, Marlborough | 2013 |
| 151 | 49 | Marlborough Blues v Old Wykehamists | Ridding Field, Winchester | 1999 |
| 146 | 46 | Marlborough Blues v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1975 |
| 144-7 | 32 | Marlborough Blues v Charterhouse Friars | Charterhouse School, Godalming | 1976 |
| 138 | 40 | Marlborough Blues v Old Tonbridgians | Tonbridge School Ground, Tonbridge | 2009 |
| 133 | 47 | Marlborough Blues v Shrewsbury Saracens | Marlborough College Ground, Marlborough | 1985 |
| 132 | 41 | Marlborough Blues v Old Wellingtonians | Marlborough College Ground, Marlborough | 1992 |
| 132 | 35* | Marlborough Blues v Repton Pilgrims | Marlborough College Ground, Marlborough | 1992 |
| 115 | 40 | Marlborough Blues v Charterhouse Friars | Charterhouse School, Godalming | 2015 |
| 113 | 34* | Marlborough Blues v Old Cranleighans | Jubilee, Cranleigh School | 2025 |
| 110 | 41* | Marlborough Blues v Stowe Templars | Stowe School Ground, Stowe | 2004 |
| 102 | 23 | Marlborough Blues v Old Cholmeleians | Highgate School Ground, Highgate | 2002 |
