| 164 runs | Surrey v Gloucestershire | The Brit Oval, Kennington | a19798 |
| 162 runs | Middlesex v Scotland | Lord's Cricket Ground, St John's Wood | a19759 |
| 151 runs | Somerset v Scotland | County Ground, Taunton | a19790 |
| 148 runs | Gloucestershire v Durham | County Ground, Bristol | a19783 |
| 138 runs | Middlesex v Scotland | Raeburn Place, Edinburgh | a19800 |
| 134 runs | Nottinghamshire v Ireland | Trent Bridge, Nottingham | a19771 |
| 128 runs | Gloucestershire v Surrey | County Ground, Bristol | a19756 |
| 114 runs | Lancashire v Derbyshire | County Ground, Derby | a19797 |
| 110 runs | Somerset v Kent | County Ground, Taunton | a19761 |
| 108 runs | Worcestershire v Hampshire | County Ground, New Road, Worcester | a19802 |
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