Cricket Records for Somerset in T20s
Largest victories
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 191 runs | - | 266 | 11.2 | 20.0 | v Derbyshire | Taunton | 9 Jul 2022 | Twenty20 | |
| 143 runs | - | 226 | 10.3 | 20.0 | v Essex | Chelmsford | 15 Jun 2011 | Twenty20 | |
| 117 runs | - | 251 | 16.1 | 20.0 | v Gloucs | Taunton | 27 Jun 2006 | Twenty20 | |
| 114 runs | - | 226 | 12.5 | 20.0 | v Essex | Chelmsford | 7 Aug 2019 | Twenty20 | |
| 108 runs | - | 194 | 13.2 | 20.0 | v Glamorgan | Taunton | 16 Jun 2024 | Twenty20 | |
| 98 runs | - | 190 | 18.3 | 20.0 | v Hampshire | Southampton | 18 Aug 2017 | Twenty20 | |
| 95 runs | - | 229 | 16.0 | 20.0 | v Gloucs | Taunton | 6 Jul 2005 | Twenty20 | |
| 95 runs | - | 226 | 14.1 | 20.0 | v Essex | Taunton | 8 Jul 2025 | Twenty20 | |
| 89 runs | - | 213 | 17.4 | 20.0 | v Glamorgan | Taunton | 27 Jun 2005 | Twenty20 | |
| 84 runs | - | 190 | 18.3 | 20.0 | v Kent | Beckenham | 20 Jun 2010 | Twenty20 | |
| 80 runs | - | 232 | 19.0 | 20.0 | v Gloucs | Bristol | 9 Jun 2023 | Twenty20 | |
| 79 runs | - | 205 | 17.4 | 20.0 | v Middlesex | Taunton | 4 Jul 2010 | Twenty20 | |
| 74 runs | - | 182 | 17.4 | 20.0 | v Glamorgan | Cardiff | 16 Jul 2021 | Twenty20 | |
| 67 runs | - | 213 | 16.4 | 20.0 | v Worcs | Taunton | 22 Jun 2008 | Twenty20 | |
| 66 runs | - | 184 | 15.5 | 20.0 | v Glamorgan | Cardiff | 16 Sep 2020 | Twenty20 | |
| 66 runs | - | 195 | 17.3 | 20.0 | v SLC Dev XI | Taunton | 27 May 2022 | Twenty20 | |
| 64 runs | - | 200 | 18.1 | 20.0 | v Glamorgan | Taunton | 19 Jul 2013 | Twenty20 | |
| 63 runs | - | 192 | 18.5 | 20.0 | v Warwickshire | Taunton | 13 Jun 2012 | Twenty20 | |
| 63 runs | - | 133 | 12.1 | 12.1 | v Hampshire | Southampton | 9 Aug 2019 | Twenty20 | |
| 63 runs | - | 242 | 19.3 | 20.0 | v Hampshire | Taunton | 9 Jun 2024 | Twenty20 | |
| 55 runs | - | 207 | 18.4 | 20.0 | v Kent | Taunton | 10 Aug 2019 | Twenty20 | |
| 47 runs | - | 205 | 18.0 | 20.0 | v Kent | Taunton | 15 Jun 2021 | Twenty20 | |
| 47 runs | - | 219 | 18.1 | 20.0 | v Surrey | Taunton | 3 Jul 2022 | Twenty20 | |
| 42 runs | - | 166 | 20.0 | 20.0 | v Comb C&C | Bridgetown | 20 Jan 2011 | Twenty20 | |
| 40 runs | - | 236 | 20.0 | 20.0 | v Middlesex | Taunton | 5 Jun 2011 | Twenty20 | |
| 39 runs | - | 156 | 16.5 | 20.0 | v Hampshire | Southampton | 6 Jul 2014 | Twenty20 | |
| 38 runs | - | 170 | 20.0 | 20.0 | v Surrey | The Oval | 30 Jun 2011 | Twenty20 | |
| 38 runs | - | 213 | 18.0 | 18.0 | v Middlesex | Taunton | 29 Jul 2018 | Twenty20 | |
| 34 runs | - | 179 | 20.0 | 20.0 | v Worcs | Taunton | 13 Jul 2004 | Twenty20 | |
| 34 runs | - | 164 | 18.5 | 20.0 | v Sussex | Arundel | 15 Jun 2014 | Twenty20 | |
| 32 runs | - | 104 | 8.0 | 8.0 | v Sussex | Taunton | 30 Jul 2017 | Twenty20 | |
| 30 runs | - | 164 | 20.0 | 20.0 | v Northants | Northampton | 4 Jun 2009 | Twenty20 | |
| 30 runs | - | 191 | 20.0 | 20.0 | v Glamorgan | Cardiff | 20 Jul 2018 | Twenty20 | |
| 29 runs | - | 211 | 20.0 | 20.0 | v Glamorgan | Taunton | 12 Aug 2018 | Twenty20 | |
| 28 runs | - | 203 | 20.0 | 20.0 | v Glamorgan | Taunton | 29 Jun 2007 | Twenty20 | |
| 27 runs | - | 176 | 18.3 | 20.0 | v Essex | Taunton | 24 Jul 2012 | Twenty20 | |
| 25 runs | - | 178 | 20.0 | 20.0 | v Glamorgan | Taunton | 24 Aug 2019 | Twenty20 | |
| 24 runs | - | 143 | 16.5 | 19.0 | v Surrey | Birmingham | 15 Jul 2023 | Twenty20 | |
| 23 runs | - | 184 | 20.0 | 20.0 | v Gloucs | Taunton | 18 Jul 2021 | Twenty20 | |
| 23 runs | - | 183 | 19.5 | 20.0 | v Lancashire | Birmingham | 13 Sep 2025 | Twenty20 | |
| 22 runs | - | 184 | 20.0 | 20.0 | v Middlesex | Taunton | 25 Jul 2014 | Twenty20 | |
| 21 runs | - | 208 | 20.0 | 20.0 | v Middlesex | Uxbridge | 16 Jul 2017 | Twenty20 | |
| 19 runs | - | 210 | 20.0 | 20.0 | v Notts | Taunton | 26 Aug 2018 | Twenty20 | |
| 18 runs | - | 157 | 18.4 | 20.0 | v Gloucs | Bristol | 16 May 2014 | Twenty20 | |
| 18 runs | - | 209 | 20.0 | 20.0 | v Surrey | The Oval | 30 Jun 2023 | Twenty20 | |
| 17 runs | - | 140 | 20.0 | 20.0 | v Windward Is | North Sound | 14 Jan 2011 | Twenty20 | |
| 17 runs | - | 216 | 20.0 | 20.0 | v Northants | Northampton | 5 Sep 2024 | Twenty20 | |
| 17 runs | - | 210 | 20.0 | 20.0 | v Hampshire | Taunton | 19 Jun 2025 | Twenty20 | |
| 16 runs | - | 198 | 20.0 | 20.0 | v Hampshire | Taunton | 1 Aug 2018 | Twenty20 | |
| 16 runs | - | 230 | 20.0 | 20.0 | v Worcs | Birmingham | 3 Sep 2020 | Twenty20 | |
| 16 runs | - | 76 | 7.0 | 7.0 | v Glamorgan | Cardiff | 24 Jun 2022 | Twenty20 | |
| 16 runs | - | 165 | 20.0 | 20.0 | v Gloucs | Taunton | 18 Jul 2025 | Twenty20 | |
| 15 runs | - | 211 | 20.0 | 20.0 | v Worcs | Taunton | 23 Jun 2005 | Twenty20 | |
| 15 runs | - | 186 | 20.0 | 20.0 | v Glamorgan | Taunton | 17 Jun 2008 | Twenty20 | |
| 15 runs | - | 171 | 20.0 | 20.0 | v Gloucs | Taunton | 8 Jul 2011 | Twenty20 | |
| 15 runs | - | 222 | 20.0 | 20.0 | v Kent | Taunton | 2 Jul 2023 | Twenty20 | |
| 14 runs | - | 205 | 19.3 | 20.0 | v Hampshire | Taunton | 26 Jul 2017 | Twenty20 | |
| 14 runs | - | 146 | 18.3 | 20.0 | v Essex | Birmingham | 15 Jul 2023 | Twenty20 | |
| 14 runs | - | 61 | 5.0 | 5.0 | v Kent | Taunton | 14 Jun 2024 | Twenty20 | |
| 13 runs | - | 220 | 20.0 | 20.0 | v Glamorgan | Taunton | 11 Jul 2006 | Twenty20 | |
| 13 runs | - | 126 | 15.0 | 15.0 | v Kent | Canterbury | 30 May 2023 | Twenty20 | |
| 12 runs | - | 147 | 20.0 | 20.0 | v Warriors | Bengaluru | 5 Oct 2011 | Twenty20 | |
| 11 runs | - | 167 | 20.0 | 20.0 | v KKR | Hyderabad | 21 Sep 2011 | Twenty20 | |
| 11 runs | - | 151 | 19.1 | 20.0 | v Essex | Taunton | 4 Jun 2023 | Twenty20 | |
| 10 runs | - | 177 | 20.0 | 20.0 | v Worcs | Worcester | 19 Jun 2008 | Twenty20 | |
| 10 runs | - | 176 | 20.0 | 20.0 | v Warwickshire | Birmingham | 30 Jul 2013 | Twenty20 | |
| 7 runs | - | 105 | 19.2 | 20.0 | v Hampshire | Southampton | 11 Jun 2010 | Twenty20 | |
| 7 runs | - | 176 | 20.0 | 20.0 | v Gloucs | Taunton | 11 Jul 2014 | Twenty20 | |
| 7 runs | - | 173 | 20.0 | 20.0 | v Hampshire | Taunton | 25 Jun 2021 | Twenty20 | |
| 7 runs | - | 185 | 20.0 | 20.0 | v Gloucs | Taunton | 17 Jun 2022 | Twenty20 | |
| 5 runs | - | 120 | 16.0 | 16.0 | v Middlesex | Taunton | 2 Jul 2021 | Twenty20 | |
| 4 runs | - | 212 | 20.0 | 20.0 | v Northants | Taunton | 15 Jul 2004 | Twenty20 | |
| 4 runs | - | 158 | 20.0 | 20.0 | v Leics | The Oval | 30 Jul 2005 | Twenty20 | |
| 3 runs | - | 121 | 13.0 | 13.0 | v Notts | Southampton | 14 Aug 2010 | Twenty20 | |
| 1 run | - | 114 | 20.0 | 20.0 | v Glamorgan | Cardiff | 25 May 2009 | Twenty20 | |
| 1 run | - | 177 | 20.0 | 20.0 | v Hampshire | Taunton | 13 Jun 2014 | Twenty20 |
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Records includes the following current or recent matches:
Hampshire vs Somerset at Birmingham, Vitality Blast Men Final, Sep 13, 2025 [Twenty20]
Somerset vs Lancashire at Birmingham, Vitality Blast Men 1st Semi Final, Sep 13, 2025 [Twenty20]
Warwickshire vs Somerset at Taunton, Vitality Blast Men 4th Quarter Final, Sep 6, 2025 [Twenty20]