Largest margins by Innings, runs & wickets for Twenty20 Cup, 2003
By runs
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 68 runs | 0 | 182 | 16.2 | 20.0 | v Glamorgan | Birmingham | 20 Jun 2003 | Twenty20 | |
| 56 runs | 0 | 171 | 19.0 | 20.0 | v Worcs | Cardiff | 23 Jun 2003 | Twenty20 | |
| 55 runs | 0 | 199 | 20.0 | 20.0 | v Durham | Leeds | 20 Jun 2003 | Twenty20 | |
| 54 runs | 0 | 203 | 20.0 | 20.0 | v Northants | Northampton | 24 Jun 2003 | Twenty20 | |
| 53 runs | 0 | 222 | 20.0 | 20.0 | v Glamorgan | Bristol | 24 Jun 2003 | Twenty20 | |
| 46 runs | 0 | 169 | 20.0 | 20.0 | v Durham | Chester-le-Street | 18 Jun 2003 | Twenty20 | |
| 45 runs | 0 | 187 | 18.1 | 20.0 | v Derbyshire | Leeds | 14 Jun 2003 | Twenty20 | |
| 44 runs | 0 | 183 | 18.5 | 20.0 | v Essex | East Molesey | 14 Jun 2003 | Twenty20 | |
| 41 runs | 0 | 178 | 19.3 | 20.0 | v Middlesex | Hove | 18 Jun 2003 | Twenty20 | |
| 37 runs | 0 | 162 | 18.2 | 20.0 | v Somerset | Worcester | 24 Jun 2003 | Twenty20 | |
| 23 runs | 0 | 160 | 18.4 | 20.0 | v Glamorgan | Cardiff | 16 Jun 2003 | Twenty20 | |
| 22 runs | 0 | 179 | 20.0 | 20.0 | v Lancashire | Leicester | 20 Jun 2003 | Twenty20 | |
| 20 runs | 0 | 176 | 20.0 | 20.0 | v Worcs | Worcester | 18 Jun 2003 | Twenty20 | |
| 19 runs | 0 | 189 | 20.0 | 20.0 | v Somerset | Taunton | 13 Jun 2003 | Twenty20 | |
| 19 runs | 0 | 141 | 20.0 | 20.0 | v Hampshire | Southampton | 24 Jun 2003 | Twenty20 | |
| 18 runs | 0 | 187 | 20.0 | 20.0 | v Kent | Canterbury | 23 Jun 2003 | Twenty20 | |
| 18 runs | 0 | 197 | 18.1 | 20.0 | v Notts | Leeds | 24 Jun 2003 | Twenty20 | |
| 16 runs | 0 | 175 | 20.0 | 20.0 | v Yorkshire | Leicester | 16 Jun 2003 | Twenty20 | |
| 15 runs | 0 | 167 | 20.0 | 20.0 | v Somerset | Northampton | 20 Jun 2003 | Twenty20 | |
| 7 runs | 0 | 181 | 20.0 | 20.0 | v Essex | Hove | 21 Jun 2003 | Twenty20 | |
| 6 runs | 0 | 158 | 20.0 | 20.0 | v Durham | Derby | 23 Jun 2003 | Twenty20 | |
| 5 runs | 0 | 154 | 20.0 | 20.0 | v Sussex | Southampton | 13 Jun 2003 | Twenty20 | |
| 5 runs | 0 | 148 | 20.0 | 20.0 | v Gloucs | Nottingham | 19 Jul 2003 | Twenty20 | |
| 4 runs | 0 | 156 | 20.0 | 20.0 | v Hampshire | Southampton | 18 Jun 2003 | Twenty20 | |
| 4 runs | 0 | 145 | 20.0 | 20.0 | v Durham | Manchester | 24 Jun 2003 | Twenty20 | |
| 2 runs | 0 | 176 | 20.0 | 20.0 | v Middlesex | Chelmsford | 24 Jun 2003 | Twenty20 | |
| 1 run | 0 | 172 | 20.0 | 20.0 | v Derbyshire | Leicester | 24 Jun 2003 | Twenty20 |
By wickets
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 10 wickets | 58 | 120 | 10.2 | 20.0 | v Somerset | Taunton | 21 Jun 2003 | Twenty20 | |
| 9 wickets | 51 | 95 | 11.3 | 20.0 | v Notts | Derby | 19 Jun 2003 | Twenty20 | |
| 9 wickets | 55 | 116 | 10.5 | 20.0 | v Warwickshire | Nottingham | 19 Jul 2003 | Twenty20 | |
| 8 wickets | 31 | 135 | 14.5 | 20.0 | v Hampshire | Uxbridge | 23 Jun 2003 | Twenty20 | |
| 8 wickets | 41 | 135 | 13.1 | 20.0 | v Warwickshire | Birmingham | 23 Jun 2003 | Twenty20 | |
| 7 wickets | 12 | 194 | 18.0 | 20.0 | v Glamorgan | Cardiff | 18 Jun 2003 | Twenty20 | |
| 7 wickets | 16 | 162 | 17.2 | 20.0 | v Kent | Richmond | 19 Jun 2003 | Twenty20 | |
| 7 wickets | 41 | 103 | 13.1 | 20.0 | v Yorkshire | Manchester | 19 Jun 2003 | Twenty20 | |
| 7 wickets | 25 | 92 | 15.5 | 20.0 | v Lancashire | Manchester | 21 Jun 2003 | Twenty20 | |
| 6 wickets | 48 | 146 | 12.0 | 20.0 | v Hampshire | Beckenham | 16 Jun 2003 | Twenty20 | |
| 5 wickets | 25 | 115 | 15.5 | 20.0 | v Kent | Hove | 24 Jun 2003 | Twenty20 | |
| 4 wickets | 11 | 144 | 18.1 | 20.0 | v Sussex | East Molesey | 16 Jun 2003 | Twenty20 | |
| 3 wickets | 23 | 117 | 16.1 | 20.0 | v Essex | Chelmsford | 20 Jun 2003 | Twenty20 |
By balls remaining in the second innings
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 10 wickets | 58 | 120 | 10.2 | 20.0 | v Somerset | Taunton | 21 Jun 2003 | Twenty20 | |
| 9 wickets | 55 | 116 | 10.5 | 20.0 | v Warwickshire | Nottingham | 19 Jul 2003 | Twenty20 | |
| 9 wickets | 51 | 95 | 11.3 | 20.0 | v Notts | Derby | 19 Jun 2003 | Twenty20 | |
| 6 wickets | 48 | 146 | 12.0 | 20.0 | v Hampshire | Beckenham | 16 Jun 2003 | Twenty20 | |
| 7 wickets | 41 | 103 | 13.1 | 20.0 | v Yorkshire | Manchester | 19 Jun 2003 | Twenty20 | |
| 8 wickets | 41 | 135 | 13.1 | 20.0 | v Warwickshire | Birmingham | 23 Jun 2003 | Twenty20 | |
| 8 wickets | 31 | 135 | 14.5 | 20.0 | v Hampshire | Uxbridge | 23 Jun 2003 | Twenty20 | |
| 7 wickets | 25 | 92 | 15.5 | 20.0 | v Lancashire | Manchester | 21 Jun 2003 | Twenty20 | |
| 5 wickets | 25 | 115 | 15.5 | 20.0 | v Kent | Hove | 24 Jun 2003 | Twenty20 | |
| 3 wickets | 23 | 117 | 16.1 | 20.0 | v Essex | Chelmsford | 20 Jun 2003 | Twenty20 | |
| 7 wickets | 16 | 162 | 17.2 | 20.0 | v Kent | Richmond | 19 Jun 2003 | Twenty20 | |
| 7 wickets | 12 | 194 | 18.0 | 20.0 | v Glamorgan | Cardiff | 18 Jun 2003 | Twenty20 | |
| 4 wickets | 11 | 144 | 18.1 | 20.0 | v Sussex | East Molesey | 16 Jun 2003 | Twenty20 | |
| 6 wickets | 5 | 158 | 19.1 | 20.0 | v Notts | Chester-le-Street | 13 Jun 2003 | Twenty20 | |
| 4 wickets | 5 | 123 | 19.1 | 20.0 | v Worcs | Bristol | 14 Jun 2003 | Twenty20 | |
| 7 wickets | 5 | 121 | 19.1 | 20.0 | v Lancashire | Nottingham | 16 Jun 2003 | Twenty20 | |
| 4 wickets | 4 | 156 | 19.2 | 20.0 | v Middlesex | The Oval | 13 Jun 2003 | Twenty20 | |
| 7 wickets | 4 | 163 | 19.2 | 20.0 | v Leics | Nottingham | 19 Jul 2003 | Twenty20 | |
| 5 wickets | 3 | 129 | 19.3 | 20.0 | v Northants | Bristol | 19 Jun 2003 | Twenty20 | |
| 1 wicket | 2 | 151 | 19.4 | 20.0 | v Northants | Worcester | 13 Jun 2003 | Twenty20 | |
| 1 wicket | 0 | 159 | 20.0 | 20.0 | v Notts | Nottingham | 21 Jun 2003 | Twenty20 |
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