| 221 runs | Somerset v Ireland | County Ground, Taunton | a10473 |
| 184 runs | Yorkshire v Minor Counties | Headingley, Leeds | a10509 |
| 178 runs | Leicestershire v Scotland | Grace Road, Leicester | a10450 |
| 165 runs | Surrey v Hampshire | County Ground, Southampton | a10489 |
| 155 runs | Warwickshire v Minor Counties | Edgbaston, Birmingham | a10464 |
| 141 runs | Somerset v Glamorgan | County Ground, Taunton | a10463 |
| 130 runs | Surrey v Leicestershire | The Foster's Oval, Kennington | a10560 |
| 122 runs | Gloucestershire v British Universities | The Royal and Sun Alliance County Ground, Bristol | a10447 |