Highest Partnerships Against Middlesex By Somerset
| 1 | 144 | J Cox & JID Kerr | John Walker's Ground, Southgate | 1999 | a12058 |
| 2 | 188 | | Lord's Cricket Ground, St John's Wood | 1996 | a9801 |
| 3 | 136 | JL Langer & CL White | Lord's Cricket Ground, St John's Wood | 2007 | a18243 |
| 4 | 141 | | Lord's Cricket Ground, St John's Wood | 1988 | a5729 |
| 5 | 131 | | County Ground, Taunton | 1999 | a12043 |
| 6 | 104 | IT Botham & NFM Popplewell | Lord's Cricket Ground, St John's Wood | 1983 | a3808 |
| 7 | 79 | | Uxbridge Cricket Club Ground, Uxbridge | 1996 | a10045 |
| 8 | 45 | OAC Banks & BJ Phillips | Lord's Cricket Ground, St John's Wood | 2008 | a19087 |
| 9 | 71 | WJ Durston & NAM McLean | John Walker's Ground, Southgate | 2003 | a15204 |
| 10 | 23* | WJ Durston & CM Willoughby | Recreation Ground, Bath | 2006 | a17485 |
| 10 | 23 | | County Ground, Taunton | 1990 | a6571 |
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