| 1 | 286 | IJ Ward & AD Brown | for Surrey | The AMP Oval, Kennington | 2002 | a14362 |
| 2 | 203 | PN Weekes & MW Gatting | for Middlesex | Lord's Cricket Ground, St John's Wood | 1996 | a9888 |
| 2 | 203 | FIN Khushi & T Westley | for Essex | The Cloud County Ground, Chelmsford | 2022 | a29370 |
| 3 | 223 | SJ Cook & GD Rose | for Somerset | The Gnoll, Neath | 1990 | a6657 |
| 4 | 221 | JM Vince & LA Dawson | for Hampshire | The Ageas Bowl, Southampton | 2017 | a25570 |
| 5 | 133 | MN Lathwell & RJ Harden | for Somerset | County Ground, Taunton | 1997 | a10462 |
| 5 | 133 | NJ O'Brien & MA Thornely | for Leicestershire | St Helen's, Swansea | 2013 | a22798 |
| 6 | 131 | N Pothas & AD Mascarenhas | for Hampshire | St Helen's, Swansea | 2007 | a18248 |
| 7 | 107 | | for Sussex | County Ground, Hove | 1993 | a8174 |
| 7 | 107 | J Clark & SC Meaker | for Surrey | Sophia Gardens, Cardiff | 2019 | a27338 |
| 8 | 93* | SJ Mullaney & A Shahzad | for Nottinghamshire | The SWALEC Stadium, Cardiff | 2014 | a23437 |
| 9 | 84* | NJ Dexter & ST Finn | for Middlesex | The SWALEC Stadium, Cardiff | 2014 | a23420 |
| 10 | 64 | RJ Blakey & RJ Sidebottom | for Yorkshire | Headingley, Leeds | 2002 | a14524 |