| 346 runs | Somerset v Devon | The Recreation Ground, Torquay | a6607 |
| 241 runs | Lancashire v Gloucestershire | Old Trafford, Manchester | a6672 |
| 216 runs | Northamptonshire v Staffordshire | County Ground, Northampton | a6616 |
| 195 runs | Gloucestershire v Lincolnshire | Wagon Works Ground, Gloucester | a6610 |
| 192 runs | Nottinghamshire v Buckinghamshire | Pound Lane, Marlow | a6605 |
| 128 runs | Warwickshire v Hertfordshire | Clarence Park, St Albans | a6611 |
| 111 runs | Hampshire v Yorkshire | County Ground, Southampton | a6671 |
| 102 runs | Kent v Oxfordshire | Christ Church Ground, Oxford | a6617 |