| 1 | 135 | JA Hopkins & H Morris | Glamorgan v Somerset | 1983 | a3706 |
| 2 | 137 | RWT Key & M van Jaarsveld | Kent v Somerset | 2005 | a16669 |
| 3 | 140* | MR Ramprakash & JD Carr | Middlesex v Somerset | 1993 | a8087 |
| 4 | 117 | CJ Tavaré & RJ Harden | Somerset v Kent | 1989 | a6094 |
| 5 | 118 | DI Stevens & JN Snape | Leicestershire v Somerset | 2004 | a15936 |
| 6 | 83 | PM Roebuck & VJ Marks | Somerset v Gloucestershire | 1981 | a2990 |
| 7 | 85* | BC Rose & J Garner | Somerset v Surrey | 1982 | a3354 |
| 8 | 54 | RJ Turner & AW Laraman | Somerset v Kent | 2005 | a16669 |
| 9 | 42 | BJ Phillips & AC Thomas | Somerset v Worcestershire | 2010 | a20597 |
| 10 | 57* | EJG Morgan & Mohammad Ali | Middlesex v Somerset | 2006 | a17493 |