| 173* | MJ Di Venuto | Derbyshire v Derbyshire Cricket Board | County Ground, Derby | a12784 |
| 156 | MTG Elliott | Glamorgan v Dorset | Dean Park, Bournemouth | a12786 |
| 135* | A Flintoff | Lancashire v Surrey | The Foster's Oval, Kennington | a12875 |
| 133 | DI Stevens | Leicestershire v Northumberland | Osborne Avenue, Jesmond | a12793 |
| 129 | K Newell | Glamorgan v Dorset | Dean Park, Bournemouth | a12786 |
| 120* | SC Ganguly | Lancashire v Lincolnshire | Sports Ground, Cleethorpes | a12790 |
| 118 | NV Knight | Warwickshire v Glamorgan | Edgbaston, Birmingham | a12872 |
| 112 | AS Wright | Leicestershire Cricket Board v Durham Cricket Board | Eastwood Gardens, Gateshead | a12697 |
| 110 | THC Hancock | Gloucestershire v Northamptonshire | The Royal and Sun Alliance County Ground, Bristol | a12874 |
| 107 | AF Giles | Warwickshire v Derbyshire | Edgbaston, Birmingham | a12835 |
| 102* | JT Ralph | Shropshire v Somerset | St Georges Recreation Ground, Telford | a12794 |
| 100 | JL Langer | Middlesex v Nottinghamshire | Lord's Cricket Ground, St John's Wood | a12791 |
| 100 | NV Knight | Warwickshire v Hampshire | Edgbaston, Birmingham | a12889 |