Largest margins in List A by Innings, runs & wickets for Glamorgan vs Gloucestershire
By runs
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 136 runs | - | 275 | 41.1 | 50.0 | v Glamorgan | Cardiff | 28 Jul 1999 | List A | |
| 74 runs | - | 332 | 48.3 | 50.0 | v Gloucs | Bristol | 30 Apr 2019 | List A | |
| 52 runs | - | 186 | 38.1 | 40.0 | v Glamorgan | Lydney | 27 Jun 1971 | List A | |
| 52 runs | - | 290 | 47.1 | 50.0 | v Gloucs | Cardiff | 6 Jun 2016 | List A | |
| 45 runs | - | 197 | 50.2 | 55.0 | v Glamorgan | Swansea | 17 May 1986 | List A | |
| 34 runs | - | 231 | 57.1 | 60.0 | v Glamorgan | Cardiff | 30 Jun 1973 | List A | |
| 33 runs | - | 171 | 51.5 | 55.0 | v Gloucs | Bristol | 7 May 1973 | List A | |
| 33 runs | - | 251 | 39.3 | 45.0 | v Gloucs | Swansea | 6 Jun 2004 | List A | |
| 27 runs | - | 188 | 30.1 | 33.0 | v Gloucs | Cardiff | 25 Jul 2024 | List A | |
| 18 runs | - | 251 | 44.0 | 44.0 | v Gloucs | Bristol | 27 Apr 2017 | List A | |
| 17 runs | - | 237 | 40.0 | 40.0 | v Glamorgan | Swansea | 6 Jul 1997 | List A | |
| 9 runs | - | 220 | 55.0 | 55.0 | v Gloucs | Cardiff | 1 May 1990 | List A | |
| 9 runs | - | 177 | 53.1 | 55.0 | v Glamorgan | Swansea | 16 May 1995 | List A | |
| 7 runs | - | 289 | 40.0 | 40.0 | v Glamorgan | Cardiff | 19 May 2013 | List A | |
| 6 runs | - | 284 | 50.0 | 50.0 | v Glamorgan | Colwyn Bay | 10 Jun 2007 | List A | |
| 4 runs | - | 188 | 54.2 | 55.0 | v Glamorgan | Bristol | 8 May 1982 | List A | |
| 3 runs | - | 209 | 55.0 | 55.0 | v Gloucs | Bristol | 17 May 1975 | List A | |
| 2 runs | - | 157 | 40.0 | 40.0 | v Glamorgan | Neath | 5 Jul 1970 | List A | |
| 1 run | - | 229 | 55.0 | 55.0 | v Gloucs | Bristol | 10 May 1980 | List A |
By wickets
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 10 wickets | 28 | 133 | 21.2 | 26.0 | v Gloucs | Cardiff | 18 May 2003 | List A | |
| 8 wickets | 125 | 172 | 29.1 | 50.0 | v Glamorgan | Cardiff | 3 May 2002 | List A | |
| 8 wickets | 46 | 214 | 37.2 | 45.0 | v Gloucs | Bristol | 2 May 2004 | List A | |
| 8 wickets | 10 | 265 | 48.2 | 50.0 | v Glamorgan | Cardiff | 18 May 2018 | List A | |
| 7 wickets | 19 | 226 | 46.5 | 50.0 | v Glamorgan | Lord's | 10 Jun 2000 | List A | |
| 6 wickets | 26 | 195 | 50.4 | 55.0 | v Glamorgan | Swansea | 29 Apr 1972 | List A | |
| 6 wickets | 42 | 136 | 48.0 | 55.0 | v Glamorgan | Neath | 11 May 1974 | List A | |
| 6 wickets | 37 | 180 | 48.5 | 55.0 | v Gloucs | Swansea | 19 May 1979 | List A | |
| 6 wickets | 34 | 203 | 44.2 | 50.0 | v Glamorgan | Cardiff | 9 May 2008 | List A | |
| 5 wickets | 36 | 124 | 34.0 | 40.0 | v Glamorgan | Cardiff | 20 Jul 1969 | List A | |
| 5 wickets | 57 | 102 | 45.3 | 55.0 | v Gloucs | Swansea | 14 May 1988 | List A | |
| 5 wickets | 11 | 169 | 34.1 | 36.0 | v Glamorgan | Bristol | 28 May 2006 | List A | |
| 5 wickets | 23 | 218 | 46.1 | 50.0 | v Glamorgan | Cardiff | 16 Aug 2023 | List A | |
| 5 wickets | 20 | 289 | 46.4 | 50.0 | v Glamorgan | Bristol | 15 Aug 2025 | List A | |
| 4 wickets | 12 | 195 | 43.0 | 45.0 | v Gloucs | Cardiff | 23 Aug 2005 | List A | |
| 4 wickets | 10 | 155 | 38.2 | 40.0 | v Gloucs | Cardiff | 15 May 2011 | List A | |
| 3 wickets | 14 | 263 | 42.4 | 45.0 | v Glamorgan | Bristol | 25 Sep 2005 | List A | |
| 3 wickets | 15 | 198 | 37.3 | 40.0 | v Glamorgan | Bristol | 24 Apr 2011 | List A |
By balls remaining in the second innings
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 8 wickets | 125 | 172 | 29.1 | 50.0 | v Glamorgan | Cardiff | 3 May 2002 | List A | |
| 5 wickets | 57 | 102 | 45.3 | 55.0 | v Gloucs | Swansea | 14 May 1988 | List A | |
| 8 wickets | 46 | 214 | 37.2 | 45.0 | v Gloucs | Bristol | 2 May 2004 | List A | |
| 6 wickets | 42 | 136 | 48.0 | 55.0 | v Glamorgan | Neath | 11 May 1974 | List A | |
| 6 wickets | 37 | 180 | 48.5 | 55.0 | v Gloucs | Swansea | 19 May 1979 | List A | |
| 5 wickets | 36 | 124 | 34.0 | 40.0 | v Glamorgan | Cardiff | 20 Jul 1969 | List A | |
| 6 wickets | 34 | 203 | 44.2 | 50.0 | v Glamorgan | Cardiff | 9 May 2008 | List A | |
| 10 wickets | 28 | 133 | 21.2 | 26.0 | v Gloucs | Cardiff | 18 May 2003 | List A | |
| 6 wickets | 26 | 195 | 50.4 | 55.0 | v Glamorgan | Swansea | 29 Apr 1972 | List A | |
| 5 wickets | 23 | 218 | 46.1 | 50.0 | v Glamorgan | Cardiff | 16 Aug 2023 | List A | |
| 5 wickets | 20 | 289 | 46.4 | 50.0 | v Glamorgan | Bristol | 15 Aug 2025 | List A | |
| 7 wickets | 19 | 226 | 46.5 | 50.0 | v Glamorgan | Lord's | 10 Jun 2000 | List A | |
| 3 wickets | 15 | 198 | 37.3 | 40.0 | v Glamorgan | Bristol | 24 Apr 2011 | List A | |
| 3 wickets | 14 | 263 | 42.4 | 45.0 | v Glamorgan | Bristol | 25 Sep 2005 | List A | |
| 4 wickets | 12 | 195 | 43.0 | 45.0 | v Gloucs | Cardiff | 23 Aug 2005 | List A | |
| 5 wickets | 11 | 169 | 34.1 | 36.0 | v Glamorgan | Bristol | 28 May 2006 | List A | |
| 4 wickets | 10 | 155 | 38.2 | 40.0 | v Gloucs | Cardiff | 15 May 2011 | List A | |
| 8 wickets | 10 | 265 | 48.2 | 50.0 | v Glamorgan | Cardiff | 18 May 2018 | List A | |
| 5 wickets | 9 | 237 | 48.3 | 50.0 | v Glamorgan | Bristol | 4 May 2001 | List A | |
| 7 wickets | 7 | 198 | 36.5 | 38.0 | v Glamorgan | Cheltenham | 27 Jul 2003 | List A | |
| 3 wickets | 2 | 149 | 24.4 | 25.0 | v Gloucs | Cardiff | 15 Apr 2000 | List A | |
| 2 wickets | 1 | 248 | 39.5 | 40.0 | v Glamorgan | Bristol | 18 Aug 2013 | List A |
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Records includes the following current or recent matches:
Gloucestershire vs Somerset at Taunton, One-Day Cup Quarter Final, Aug 28, 2025 [List A]
Leicestershire vs Glamorgan at Cardiff, One-Day Cup Group A, Aug 26, 2025 [List A]
Gloucestershire vs Hampshire at Bristol, One-Day Cup Group A, Aug 26, 2025 [List A]