| Inns | HS |
| 303-6 | 84 | Old Blundellians v Old Cliftonians | Blundell's School, Tiverton | 2001 |
| 255 | 54 | Old Blundellians v Oundle Rovers | Blundell's School, Tiverton | 1988 |
| 238 | 93 | Old Blundellians v Old Cliftonians | Clifton College Close Ground, Clifton | 1991 |
| 233-6 | 78 | Old Blundellians v Old Malvernians | Blundell's School, Tiverton | 1987 |
| 230-8 | 80 | Old Blundellians v Haileybury Hermits | Blundell's School, Tiverton | 1985 |
| 226-8 | 62 | Old Blundellians v Repton Pilgrims | Blundell's School, Tiverton | 2004 |
| 220 | 60 | Old Blundellians v Old Cholmeleians | Blundell's School, Tiverton | 1973 |
| 210 | 67 | Old Blundellians v Haileybury Hermits | Blundell's School, Tiverton | 1970 |
| 209-9 | 52 | Old Blundellians v Old Whitgiftians | Blundell's School, Tiverton | 1977 |
| 209 | 65 | Old Blundellians v Shrewsbury Saracens | Blundell's School, Tiverton | 1989 |
| 197-7 | 44 | Old Blundellians v Bradfield Waifs | Blundell's School, Tiverton | 1977 |
| 195-9 | 40 | Old Blundellians v Old Malvernians | Malvern College Ground, Malvern | 1984 |
| 193-9 | 47 | Old Blundellians v Oundle Rovers | Oundle School Ground, Oundle | 1976 |
| 193 | 74 | Old Blundellians v Repton Pilgrims | Blundell's School, Tiverton | 1976 |
| 193-5 | 62 | Old Blundellians v Old Cliftonians | Clifton College Close Ground, Clifton | 2004 |
| 192-6 | 45 | Old Blundellians v Lancing Rovers | Blundell's School, Tiverton | 2003 |
| 183-7 | 57 | Old Blundellians v Repton Pilgrims | Repton School Ground, Repton | 1996 |
| 180 | 51 | Old Blundellians v Old Tonbridgians | Blundell's School, Tiverton | 2003 |
| 178-9 | 74 | Old Blundellians v Old Whitgiftians | Whitgift School, Croydon | 1973 |
| 175-4 | 57 | Old Blundellians v Felsted Robins | Blundell's School, Tiverton | 1984 |
| 172-8 | -1 | Old Blundellians v Felsted Robins | Felsted School Ground, Dunmow | 1979 |
| 170 | 55 | Old Blundellians v Shrewsbury Saracens | Shrewsbury School, Shrewsbury | 1978 |
| 164-8 | 40 | Old Blundellians v Old Malvernians | Malvern College Ground, Malvern | 2004 |
| 162-8 | 32 | Old Blundellians v St Edward's Martyrs | Blundell's School, Tiverton | 1981 |
| 157 | 53 | Old Blundellians v Lancing Rovers | Blundell's School, Tiverton | 1976 |
| 154 | 44 | Old Blundellians v Old Brightonians | Brighton College Ground, Brighton | 1980 |
| 154-9 | 54 | Old Blundellians v Harrow Wanderers | Harrow School Cricket Ground, Harrow-on-the-Hill | 1982 |
| 151-8 | 42 | Old Blundellians v Old Cholmeleians | Blundell's School, Tiverton | 1994 |
| 145 | 39 | Old Blundellians v Radley Rangers | Radley College Bigside Ground, Abingdon | 1981 |
| 143 | 60 | Old Blundellians v Charterhouse Friars | Blundell's School, Tiverton | 2001 |
