| 324 runs | Gloucestershire v Buckinghamshire | Ascott Park, Wing | a15090 |
| 230 runs | Buckinghamshire v Suffolk | Oxford Road, Dinton | a14498 |
| 171 runs | Derbyshire v Kent Cricket Board | St Lawrence Ground, Canterbury | a15097 |
| 170 runs | Worcestershire v Worcestershire Cricket Board | County Ground, New Road, Worcester | a15103 |
| 143 runs | Lancashire v Durham | Riverside Ground, Chester-le-Street | a15133 |
| 137 runs | Derbyshire v Surrey | County Ground, Derby | a15158 |
| 127 runs | Devon v Cumberland | The Maer Ground, Exmouth | a14547 |
| 126 runs | Northumberland v Yorkshire Cricket Board | Osborne Avenue, Jesmond | a14553 |
| 105 runs | Staffordshire v Hampshire Cricket Board | The Quarters, Hursley | a14550 |