| 200* | RJ Bailey | Northamptonshire v Yorkshire | 1986 | f36419 |
| 172 | AJ Lamb | Northamptonshire v Somerset | 1993 | f40572 |
| 165 | RJ Bailey | Northamptonshire v Glamorgan | 1992 | f39992 |
| 151 | AA Metcalfe | Yorkshire v Northamptonshire | 1986 | f36419 |
| 137 | A Fordham | Northamptonshire v Glamorgan | 1992 | f39992 |
| 132 | MB Loye | Northamptonshire v Yorkshire | 1994 | f41142 |
| 126 | G Cook | Northamptonshire v Somerset | 1989 | f38160 |
| 124* | G Cook | Northamptonshire v Middlesex | 1988 | f37578 |
| 117 | MP Vaughan | Yorkshire v Northamptonshire | 1994 | f41142 |
| 115* | RJ Harden | Somerset v Northamptonshire | 1989 | f38160 |
| 115 | MA Roseberry | Middlesex v Northamptonshire | 1990 | f38779 |
| 114 | KM Curran | Northamptonshire v Yorkshire | 1994 | f41142 |
| 109* | AJ Lamb | Northamptonshire v Glamorgan | 1992 | f39992 |
| 100 | RJ Bailey | Northamptonshire v Somerset | 1989 | f38160 |