| 256 runs | Leicestershire v Minor Counties | Grace Road, Leicester | a11166 |
| 192 runs | Essex v Leicestershire | Lord's Cricket Ground, St John's Wood | a11289 |
| 171 runs | Essex v Ireland | County Ground, Chelmsford | a11147 |
| 125 runs | Kent v Hampshire | County Ground, Southampton | a11164 |
| 115 runs | Glamorgan v Ireland | Castle Avenue, Dublin | a11134 |
| 105 runs | Surrey v British Universities | The Foster's Oval, Kennington | a11151 |
| 102 runs | Yorkshire v Durham | Headingley, Leeds | a11217 |