Cricket Records for Glamorgan in T20s
Largest victories
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 120 runs | 0 | 244 | 13.3 | 20.0 | v Somerset | Cardiff | 19 Jul 2024 | Twenty20 | |
| 63 runs | 0 | 169 | 16.5 | 20.0 | v Hampshire | Southampton | 6 Jul 2018 | Twenty20 | |
| 58 runs | 0 | 161 | 14.0 | 14.0 | v Worcs | Worcester | 28 Jun 2013 | Twenty20 | |
| 56 runs | 0 | 171 | 19.0 | 20.0 | v Worcs | Cardiff | 23 Jun 2003 | Twenty20 | |
| 55 runs | 0 | 177 | 15.5 | 16.0 | v Kent | Cardiff | 17 Jun 2016 | Twenty20 | |
| 52 runs | 0 | 185 | 18.5 | 20.0 | v Middlesex | Cardiff | 18 Jul 2025 | Twenty20 | |
| 46 runs | 0 | 160 | 18.3 | 20.0 | v Sussex | Cardiff | 7 Jul 2016 | Twenty20 | |
| 45 runs | 0 | 183 | 17.5 | 18.0 | v Middlesex | Cardiff | 3 Jun 2011 | Twenty20 | |
| 40 runs | 0 | 221 | 19.5 | 20.0 | v Essex | Chelmsford | 12 Jun 2025 | Twenty20 | |
| 40 runs | 0 | 190 | 20.0 | 20.0 | v Gloucs | Bristol | 15 Jun 2025 | Twenty20 | |
| 39 runs | 0 | 167 | 19.0 | 20.0 | v Gloucs | Cardiff | 27 May 2009 | Twenty20 | |
| 35 runs | 0 | 191 | 17.2 | 20.0 | v Kent | Canterbury | 3 Jul 2022 | Twenty20 | |
| 32 runs | 0 | 163 | 19.1 | 20.0 | v Gloucs | Cardiff | 14 Jul 2004 | Twenty20 | |
| 32 runs | 0 | 220 | 20.0 | 20.0 | v Sussex | Hove | 4 Jun 2023 | Twenty20 | |
| 32 runs | 0 | 184 | 20.0 | 20.0 | v Gloucs | Cardiff | 18 Jun 2023 | Twenty20 | |
| 29 runs | 0 | 239 | 20.0 | 20.0 | v Middlesex | Northwood | 31 May 2023 | Twenty20 | |
| 28 runs | 0 | 217 | 20.0 | 20.0 | v Hampshire | Cardiff | 30 Aug 2019 | Twenty20 | |
| 26 runs | 0 | 183 | 18.5 | 20.0 | v Essex | Cardiff | 7 Jul 2024 | Twenty20 | |
| 25 runs | 0 | 241 | 19.3 | 20.0 | v Surrey | The Oval | 15 May 2015 | Twenty20 | |
| 25 runs | 0 | 177 | 20.0 | 20.0 | v Gloucs | Bristol | 25 Jul 2017 | Twenty20 | |
| 25 runs | 0 | 200 | 20.0 | 20.0 | v Kent | Canterbury | 30 Jul 2017 | Twenty20 | |
| 25 runs | 0 | 184 | 20.0 | 20.0 | v Sussex | Cardiff | 2 Jun 2024 | Twenty20 | |
| 24 runs | 0 | 215 | 18.0 | 18.0 | v Sussex | Hove | 5 Jul 2024 | Twenty20 | |
| 23 runs | 0 | 182 | 20.0 | 20.0 | v Hampshire | Southampton | 3 Jul 2015 | Twenty20 | |
| 22 runs | 0 | 84 | 9.0 | 9.0 | v Warwickshire | Birmingham | 8 Jul 2012 | Twenty20 | |
| 21 runs | 0 | 151 | 20.0 | 20.0 | v Middlesex | Cardiff | 18 Jun 2021 | Twenty20 | |
| 20 runs | 0 | 141 | 14.1 | 16.0 | v Worcs | Worcester | 15 Jul 2004 | Twenty20 | |
| 19 runs | 0 | 192 | 20.0 | 20.0 | v Gloucs | Bristol | 12 Jun 2015 | Twenty20 | |
| 18 runs | 0 | 199 | 20.0 | 20.0 | v Sussex | Arundel | 9 Jul 2017 | Twenty20 | |
| 17 runs | 0 | 189 | 20.0 | 20.0 | v Gloucs | Cardiff | 18 Sep 2020 | Twenty20 | |
| 15 runs | 0 | 151 | 20.0 | 20.0 | v Gloucs | Bristol | 29 Aug 2020 | Twenty20 | |
| 14 runs | 0 | 171 | 20.0 | 20.0 | v Somerset | Cardiff | 13 Jun 2008 | Twenty20 | |
| 13 runs | 0 | 146 | 13.0 | 13.0 | v Kent | Canterbury | 16 Jul 2024 | Twenty20 | |
| 10 runs | 0 | 158 | 17.0 | 17.0 | v Northants | Cardiff | 20 Jun 2008 | Twenty20 | |
| 10 runs | 0 | 165 | 20.0 | 20.0 | v Surrey | Cardiff | 9 Jul 2010 | Twenty20 | |
| 10 runs | 0 | 162 | 20.0 | 20.0 | v Hampshire | Southampton | 16 May 2014 | Twenty20 | |
| 7 runs | 0 | 177 | 20.0 | 20.0 | v Somerset | Taunton | 6 Jun 2014 | Twenty20 | |
| 6 runs | 0 | 182 | 20.0 | 20.0 | v Surrey | The Oval | 4 Aug 2017 | Twenty20 | |
| 6 runs | 0 | 199 | 20.0 | 20.0 | v Essex | Cardiff | 7 Aug 2018 | Twenty20 | |
| 5 runs | 0 | 58 | 8.0 | 8.0 | v Warwickshire | Cardiff | 17 Jun 2012 | Twenty20 | |
| 4 runs | 0 | 193 | 20.0 | 20.0 | v Surrey | The Oval | 11 Jul 2014 | Twenty20 | |
| 4 runs | 0 | 170 | 20.0 | 20.0 | v Middlesex | Cardiff | 5 Jun 2015 | Twenty20 | |
| 3 runs | 0 | 171 | 20.0 | 20.0 | v Somerset | Taunton | 28 Jun 2015 | Twenty20 | |
| 2 runs | 0 | 138 | 20.0 | 20.0 | v Sussex | Cardiff | 23 Jun 2011 | Twenty20 | |
| 2 runs | 0 | 42 | 6.0 | 6.0 | v Somerset | Cardiff | 13 Jun 2015 | Twenty20 | |
| 2 runs | 0 | 202 | 20.0 | 20.0 | v Gloucs | Cardiff | 3 Aug 2018 | Twenty20 | |
| 2 runs | 0 | 177 | 20.0 | 20.0 | v Somerset | Taunton | 4 Jul 2025 | Twenty20 | |
| 1 run | 0 | 180 | 20.0 | 20.0 | v Kent | Tunbridge Wells | 17 Jul 2015 | Twenty20 | |
| 1 run | 0 | 184 | 20.0 | 20.0 | v Somerset | Taunton | 13 Aug 2017 | Twenty20 | |
| 1 run | 0 | 154 | 20.0 | 20.0 | v Surrey | Cardiff | 29 Jun 2021 | Twenty20 |
Adjust:Most recentPast weekPast MonthPast year4 years10 years25 years
Records includes the following current or recent matches:
Glamorgan vs Middlesex at Cardiff, Vitality Blast Men South Group, Jul 18, 2025 [Twenty20]
Gloucestershire vs Glamorgan at Cardiff, Vitality Blast Men South Group, Jul 13, 2025 [Twenty20]
Glamorgan vs Surrey at The Oval, Vitality Blast Men South Group, Jul 11, 2025 [Twenty20]