| 167 runs | Warwickshire v Kent | Edgbaston, Birmingham | a11287 |
| 161 runs | Hampshire v Dorset | Dean Park, Bournemouth | a11252 |
| 148 runs | Glamorgan v Bedfordshire | Sophia Gardens, Cardiff | a11253 |
| 144 runs | Hampshire v Middlesex | Lord's Cricket Ground, St John's Wood | a11311 |
| 132 runs | Surrey v Buckinghamshire | The Foster's Oval, Kennington | a11262 |