| 1 | 156 | M Klinger & HJH Marshall | Gloucestershire v Somerset | 2015 | tt5013 |
| 2 | 186 | JL Langer & CL White | Somerset v Gloucestershire | 2006 | tt368 |
| 3 | 120 | MJ Wood & CM Gazzard | Somerset v Worcestershire | 2005 | tt178 |
| 4 | 112 | ND McKenzie & SM Ervine | Hampshire v Somerset | 2010 | tt1841 |
| 5 | 104 | PD Trego & CJ Anderson | Somerset v Surrey | 2018 | tt7120 |
| 6 | 90 | CJ Anderson & L Gregory | Somerset v Middlesex | 2018 | tt7074 |
| 7 | 68* | JMR Taylor & BAC Howell | Gloucestershire v Somerset | 2020 | tt8982 |
| 8 | 46 | JA Simpson & TMJ Smith | Middlesex v Somerset | 2011 | tt2217 |
| 9 | 37 | AG Salter & M de Lange | Glamorgan v Somerset | 2019 | tt8083 |
| 10 | 35* | T van der Gugten & MG Hogan | Glamorgan v Somerset | 2018 | tt7129 |