| 174 runs | Hampshire v Northamptonshire | County Ground, Northampton | a21433 |
| 148 runs | Sussex v Netherlands | VRA Ground, Amstelveen | a21439 |
| 141 runs | Surrey v Leicestershire | Grace Road, Leicester | a21483 |
| 130 runs | Surrey v Warwickshire | Edgbaston, Birmingham | a21476 |
| 118 runs | Essex v Gloucestershire | Castle Park Cricket Ground, Colchester | a21481 |
| 115 runs | Hampshire v Scotland | The Rose Bowl, Southampton | a21493 |