Largest margins in List A by Innings, runs & wickets for Middlesex vs Sussex
By runs
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 157 runs | - | 401 | 38.1 | 50.0 | v Middlesex | Hove | 23 Aug 2022 | List A | |
| 132 runs | - | 218 | 27.5 | 45.0 | v Middlesex | Hove | 2 Sep 2004 | List A | |
| 130 runs | - | 218 | 26.4 | 38.0 | v Middlesex | Hove | 18 Jul 1971 | List A | |
| 122 runs | - | 299 | 33.3 | 48.0 | v Middlesex | Lord's | 27 Apr 2019 | List A | |
| 90 runs | - | 281 | 53.0 | 60.0 | v Sussex | Lord's | 23 Jun 1965 | List A | |
| 84 runs | - | 257 | 48.0 | 55.0 | v Sussex | Lord's | 28 May 1986 | List A | |
| 78 runs | - | 267 | 57.0 | 60.0 | v Sussex | Lord's | 2 Aug 1989 | List A | |
| 74 runs | - | 289 | 43.5 | 50.0 | v Sussex | Hove | 25 May 2018 | List A | |
| 64 runs | - | 180 | 49.2 | 60.0 | v Sussex | Hove | 13 Aug 1980 | List A | |
| 62 runs | - | 244 | 50.0 | 50.0 | v Middlesex | Hove | 4 May 2001 | List A | |
| 60 runs | - | 206 | 38.4 | 40.0 | v Sussex | Lord's | 9 Aug 1970 | List A | |
| 57 runs | - | 289 | 36.1 | 40.0 | v Middlesex | Hove | 31 Aug 1969 | List A | |
| 49 runs | - | 183 | 33.2 | 39.0 | v Middlesex | Lord's | 8 Jun 2003 | List A | |
| 47 runs | - | 225 | 55.0 | 55.0 | v Middlesex | Hove | 13 May 1972 | List A | |
| 31 runs | - | 281 | 53.4 | 55.0 | v Sussex | Hove | 14 May 1985 | List A | |
| 31 runs | - | 223 | 30.4 | 32.0 | v Middlesex | Hove | 12 Jun 2016 | List A | |
| 29 runs | - | 196 | 53.3 | 55.0 | v Sussex | Lord's | 11 Jun 1980 | List A | |
| 28 runs | - | 253 | 48.3 | 50.0 | v Middlesex | Lord's | 5 May 2002 | List A | |
| 21 runs | - | 61 | 18.0 | 18.0 | v Sussex | Hove | 8 Aug 2014 | List A | |
| 17 runs | - | 259 | 50.0 | 50.0 | v Sussex | Lord's | 28 May 2003 | List A | |
| 9 runs | - | 298 | 45.0 | 45.0 | v Middlesex | Arundel | 18 Jul 1999 | List A | |
| 9 runs | - | 272 | 50.0 | 50.0 | v Middlesex | Lord's | 13 Jun 2007 | List A | |
| 7 runs | - | 162 | 45.0 | 45.0 | v Middlesex | Hove | 1 Aug 2001 | List A | |
| 6 runs | - | 284 | 50.0 | 50.0 | v Sussex | Lord's | 29 Apr 1998 | List A | |
| 5 runs | - | 175 | 59.1 | 60.0 | v Middlesex | Lord's | 15 Aug 1973 | List A | |
| 3 runs | - | 309 | 40.0 | 40.0 | v Sussex | Hove | 3 Aug 2015 | List A | |
| 3 runs | - | 334 | 50.0 | 50.0 | v Middlesex | Hove | 12 Aug 2021 | List A |
By wickets
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 10 wickets | 63 | 142 | 44.3 | 55.0 | v Sussex | Hove | 5 May 1992 | List A | |
| 9 wickets | 21 | 156 | 41.3 | 45.0 | v Middlesex | Lord's | 31 May 1999 | List A | |
| 9 wickets | 104 | 124 | 22.4 | 40.0 | v Middlesex | Hove | 8 May 2011 | List A | |
| 8 wickets | 45 | 123 | 47.3 | 55.0 | v Middlesex | Lord's | 12 May 1973 | List A | |
| 8 wickets | 281 | 62 | 8.1 | 55.0 | v Sussex | Hove | 13 May 1978 | List A | |
| 8 wickets | 101 | 110 | 28.1 | 45.0 | v Middlesex | Richmond | 2 Sep 2001 | List A | |
| 8 wickets | 37 | 126 | 38.5 | 45.0 | v Sussex | Arundel | 30 Jun 2002 | List A | |
| 8 wickets | 10 | 249 | 43.2 | 45.0 | v Middlesex | Hove | 3 Sep 2003 | List A | |
| 8 wickets | 89 | 141 | 30.1 | 45.0 | v Middlesex | Lord's | 25 Apr 2004 | List A | |
| 7 wickets | 66 | 129 | 27.0 | 38.0 | v Sussex | Lord's | 11 May 1997 | List A | |
| 7 wickets | 12 | 274 | 48.0 | 50.0 | v Middlesex | Hove | 5 May 2008 | List A | |
| 7 wickets | 17 | 240 | 37.1 | 40.0 | v Sussex | Lord's | 29 Aug 2011 | List A | |
| 5 wickets | 77 | 102 | 42.1 | 55.0 | v Sussex | Hove | 5 May 1975 | List A | |
| 5 wickets | 43 | 183 | 47.5 | 55.0 | v Sussex | Lord's | 3 May 1988 | List A | |
| 5 wickets | 22 | 166 | 36.2 | 40.0 | v Middlesex | Hove | 11 Sep 2008 | List A | |
| 5 wickets | 25 | 256 | 45.5 | 50.0 | v Sussex | Lord's | 10 Aug 2025 | List A | |
| 2 wickets | 14 | 215 | 52.4 | 55.0 | v Sussex | Lord's | 15 May 1984 | List A |
By balls remaining in the second innings
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 8 wickets | 281 | 62 | 8.1 | 55.0 | v Sussex | Hove | 13 May 1978 | List A | |
| 9 wickets | 104 | 124 | 22.4 | 40.0 | v Middlesex | Hove | 8 May 2011 | List A | |
| 8 wickets | 101 | 110 | 28.1 | 45.0 | v Middlesex | Richmond | 2 Sep 2001 | List A | |
| 8 wickets | 89 | 141 | 30.1 | 45.0 | v Middlesex | Lord's | 25 Apr 2004 | List A | |
| 5 wickets | 77 | 102 | 42.1 | 55.0 | v Sussex | Hove | 5 May 1975 | List A | |
| 7 wickets | 66 | 129 | 27.0 | 38.0 | v Sussex | Lord's | 11 May 1997 | List A | |
| 10 wickets | 63 | 142 | 44.3 | 55.0 | v Sussex | Hove | 5 May 1992 | List A | |
| 8 wickets | 45 | 123 | 47.3 | 55.0 | v Middlesex | Lord's | 12 May 1973 | List A | |
| 5 wickets | 43 | 183 | 47.5 | 55.0 | v Sussex | Lord's | 3 May 1988 | List A | |
| 8 wickets | 37 | 126 | 38.5 | 45.0 | v Sussex | Arundel | 30 Jun 2002 | List A | |
| 5 wickets | 25 | 256 | 45.5 | 50.0 | v Sussex | Lord's | 10 Aug 2025 | List A | |
| 5 wickets | 22 | 166 | 36.2 | 40.0 | v Middlesex | Hove | 11 Sep 2008 | List A | |
| 9 wickets | 21 | 156 | 41.3 | 45.0 | v Middlesex | Lord's | 31 May 1999 | List A | |
| 7 wickets | 17 | 240 | 37.1 | 40.0 | v Sussex | Lord's | 29 Aug 2011 | List A | |
| 2 wickets | 14 | 215 | 52.4 | 55.0 | v Sussex | Lord's | 15 May 1984 | List A | |
| 7 wickets | 12 | 274 | 48.0 | 50.0 | v Middlesex | Hove | 5 May 2008 | List A | |
| 8 wickets | 10 | 249 | 43.2 | 45.0 | v Middlesex | Hove | 3 Sep 2003 | List A | |
| 6 wickets | 6 | 133 | 34.0 | 35.0 | v Middlesex | Hove | 20 Jul 1998 | List A | |
| 4 wickets | 3 | 186 | 39.3 | 40.0 | v Middlesex | Lord's | 10 Sep 2006 | List A | |
| 6 wickets | 2 | 201 | 39.4 | 40.0 | v Middlesex | Hove | 1 May 2006 | List A |
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Records includes the following current or recent matches:
Hampshire vs Middlesex at Radlett, One-Day Cup Quarter Final, Aug 28, 2025 [List A]
Sussex vs Warwickshire at Birmingham, One-Day Cup Group B, Aug 26, 2025 [List A]
Lancashire vs Middlesex at Manchester, One-Day Cup Group B, Aug 26, 2025 [List A]