| 151 runs | Glamorgan v Hampshire | Sophia Gardens, Cardiff | a16843 |
| 144 runs | Kent v Scotland | St Lawrence Ground, Canterbury | a16823 |
| 138 runs | Durham v Surrey | Riverside Ground, Chester-le-Street | a16583 |
| 135 runs | Somerset v Derbyshire | County Ground, Taunton | a16865 |
| 133 runs | Leicestershire v Yorkshire | Headingley, Leeds | a16833 |
| 111 runs | Middlesex v Glamorgan | Sophia Gardens, Cardiff | a16757 |
| 105 runs | Hampshire v Middlesex | Lord's Cricket Ground, St John's Wood | a16627 |
| 102 runs | Warwickshire v Yorkshire | Edgbaston, Birmingham | a16854 |