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| Semi Final 1, 18 Sep 2021, Sat - 3:30 PM Edgbaston, Birmingham, England | Hampshire 150 (20) Somerset 153/8 (19.4) | Somerset won by 2 wickets | |
| Quarter Final 4, 27 Aug 2021, Fri - 11:30 PM St Lawrence Ground, Canterbury, England | Kent 162/7 (20) Warwickshire 141 (20) | Kent Spitfires won by 21 runs | |
| Quarter Final 3, 26 Aug 2021, Thu - 11:30 PM The County Ground, Taunton, England | Lancashire 184/9 (20) Somerset 185/3 (18.1) | Somerset won by 7 wickets | |
| Quarter Final 2, 25 Aug 2021, Wed - 11:30 PM Trent Bridge, Nottingham, England | Hampshire 125/9 (20) Nottinghamshire 123 (19.4) | Hampshire Hawks won by 2 runs | |
| Quarter Final 1, 24 Aug 2021, Tue - 11:00 PM Emirates Riverside, Chester-le-Street, England | Yorkshire 177/7 (20) Sussex 178/5 (19.4) | Sussex Sharks won by 5 wickets | |
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| South Group, 18 Jul 2021, Sun - 11:00 PM The County Ground, Taunton, England | Somerset 183/7 (20) Gloucestershire 160/6 (20) | Somerset won by 23 runs | |
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| North Group, 18 Jul 2021, Sun - 8:30 PM Trent Bridge, Nottingham, England | Nottinghamshire 221/4 (20) Durham 143 (16) | Notts Outlaws won by 78 runs | |
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| South Group, 18 Jul 2021, Sun - 7:00 PM The Cloudfm County Ground, Chelmsford, England | Middlesex 169/5 (20) Essex 160/9 (20) | Middlesex won by 9 runs | |
| North Group, 18 Jul 2021, Sun - 7:00 PM County Ground, Derby, England | Derbyshire Yorkshire | No result | |
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| South Group, 16 Jul 2021, Fri - 11:00 PM Cardiff Wales Stadium, Cardiff, Wales | Somerset 181/5 (20) Glamorgan 107 (17.4) | Somerset won by 74 runs | |
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| North Group, 16 Jul 2021, Fri - 11:00 PM The County Ground, Northampton, England | Northamptonshire Derbyshire | No result | |
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| South Group, 16 Jul 2021, Fri - 10:45 PM Lord's Cricket Ground, London, England | Kent 157/8 (20) Middlesex 80 (16.3) | Kent Spitfires won by 77 runs | |
| South Group, 16 Jul 2021, Fri - 7:00 PM College Ground, Cheltenham, England | Gloucestershire 177/9 (20) Surrey 178/3 (18.2) | Surrey won by 7 wickets | |
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| South Group, 09 Jul 2021, Fri - 11:30 PM The 1st Central County Ground, Hove, England | Essex 146/9 (20) Sussex 148/4 (18.3) | Sussex Sharks won by 6 wickets | |
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| South Group, 09 Jul 2021, Fri - 7:00 PM College Ground, Cheltenham, England | Gloucestershire 171/8 (20) Middlesex 161/8 (20) | Gloucestershire won by 10 runs | |
| South Group, 02 Jul 2021, Fri - 11:30 PM The Ageas Bowl, Southampton, England | Hampshire 176/6 (20) Gloucestershire 166/5 (20) | Hampshire Hawks won by 10 runs | |
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| North Group, 02 Jul 2021, Fri - 11:00 PM Edgbaston, Birmingham, England | Nottinghamshire 177/9 (20) Warwickshire 63 (13.4) | Notts Outlaws won by 114 runs | |
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| South Group, 02 Jul 2021, Fri - 10:00 PM Cardiff Wales Stadium, Cardiff, Wales | Sussex 201/8 (20) Glamorgan 168 (18.4) | Sussex Sharks won by 33 runs | |
| South Group, 01 Jul 2021, Thu - 11:30 PM The Cloudfm County Ground, Chelmsford, England | Glamorgan 104 (17) Essex 108/2 (12.2) | Essex Eagles won by 8 wickets | |
| South Group, 01 Jul 2021, Thu - 11:00 PM Bristol County Ground, Bristol, England | Gloucestershire 161/7 (20) Somerset 165/2 (19.2) | Somerset won by 8 wickets | |
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| North Group, 01 Jul 2021, Thu - 11:00 PM Trent Bridge, Nottingham, England | Leicestershire 154 (20) Nottinghamshire 156/4 (17.5) | Notts Outlaws won by 6 wickets | |
| South Group, 01 Jul 2021, Thu - 10:45 PM Lord's Cricket Ground, London, England | Middlesex 166/7 (20) Sussex 103/9 (20) | Middlesex won by 63 runs | |
| South Group, 30 Jun 2021, Wed - 11:30 PM The Ageas Bowl, Southampton, England | Surrey 146/7 (20) Hampshire 126/8 (20) | Surrey won by 20 runs | |
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| South Group, 29 Jun 2021, Tue - 11:30 PM The 1st Central County Ground, Hove, England | Sussex Kent | Match abandoned without a ball bowled | |
| South Group, 29 Jun 2021, Tue - 11:30 PM The Cloudfm County Ground, Chelmsford, England | Somerset 153 (20) Essex 151/4 (18.1) | Essex Eagles won by 6 wickets | |
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| South Group, 29 Jun 2021, Tue - 10:00 PM Cardiff Wales Stadium, Cardiff, Wales | Glamorgan 153/6 (20) Surrey 152/9 (20) | Glamorgan won by 1 run | |
| South Group, 28 Jun 2021, Mon - 11:30 PM The Ageas Bowl, Southampton, England | Hampshire Middlesex | Match abandoned without a ball bowled | |
| South Group, 28 Jun 2021, Mon - 11:30 PM St Lawrence Ground, Canterbury, England | Kent 168/8 (20) Somerset 169/0 (15.4) | Somerset won by 10 wickets | |
| South Group, 27 Jun 2021, Sun - 7:00 PM Radlett Cricket Club, Radlett, England | Glamorgan 170/8 (20) Middlesex 171/3 (17.4) | Middlesex won by 7 wickets | |
| South Group, 27 Jun 2021, Sun - 7:00 PM The 1st Central County Ground, Hove, England | Surrey 175/7 (20) Sussex 43/1 (4.5) | No Result | |
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| North Group, 26 Jun 2021, Sat - 7:30 PM Trent Bridge, Nottingham, England | Nottinghamshire 173/6 (20) Lancashire 166/7 (20) | Notts Outlaws won by 7 runs | |
| North Group, 26 Jun 2021, Sat - 7:00 PM Edgbaston, Birmingham, England | Durham 164/8 (20) Warwickshire 130 (18.3) | Durham won by 34 runs | |
| South Group, 25 Jun 2021, Fri - 11:30 PM The 1st Central County Ground, Hove, England | Gloucestershire 162/5 (20) Sussex 135 (19.5) | Gloucestershire won by 27 runs | |
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| North Group, 25 Jun 2021, Fri - 11:30 PM County Ground, Derby, England | Nottinghamshire 137/9 (20) Derbyshire 137/9 (20) | Match Tied | |
| South Group, 25 Jun 2021, Fri - 11:00 PM The Oval, London, England | Middlesex 174/7 (20) Surrey 175/5 (19) | Surrey won by 5 wickets | |
| South Group, 25 Jun 2021, Fri - 11:00 PM The County Ground, Taunton, England | Somerset 172/9 (20) Hampshire 165/8 (20) | Somerset won by 7 runs | |
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| South Group, 24 Jun 2021, Thu - 11:00 PM Bristol County Ground, Bristol, England | Gloucestershire 216/2 (20) Glamorgan 182/8 (20) | Gloucestershire won by 34 runs | |
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| South Group, 24 Jun 2021, Thu - 10:45 PM Lord's Cricket Ground, London, England | Middlesex 183/2 (20) Essex 184/8 (20) | Essex Eagles won by 2 wickets | |
| South Group, 23 Jun 2021, Wed - 11:00 PM The Oval, London, England | Surrey 146/8 (20) Somerset 149/3 (18.4) | Somerset won by 7 wickets | |
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| South Group, 22 Jun 2021, Tue - 11:30 PM The 1st Central County Ground, Hove, England | Sussex Glamorgan | Match abandoned without a ball bowled | |
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| North Group, 22 Jun 2021, Tue - 10:30 PM Trent Bridge, Nottingham, England | Worcestershire 86/8 (20) Nottinghamshire 89/0 (6.2) | Notts Outlaws won by 10 wickets | |
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| South Group, 20 Jun 2021, Sun - 7:00 PM Bristol County Ground, Bristol, England | Gloucestershire Hampshire | Match abandoned without a ball bowled | |
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| North Group, 20 Jun 2021, Sun - 7:00 PM Emirates Riverside, Chester-le-Street, England | Durham 185/4 (20) Warwickshire 163/8 (20) | Durham won by 22 runs | |
| North Group, 20 Jun 2021, Sun - 7:00 PM Old Trafford, Manchester, England | Nottinghamshire 172 (20) Lancashire 172/4 (20) | Match Tied | |
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| South Group, 19 Jun 2021, Sat - 11:30 PM The County Ground, Taunton, England | Somerset Glamorgan | Match abandoned without a ball bowled | |
| South Group, 18 Jun 2021, Fri - 11:30 PM The 1st Central County Ground, Hove, England | Sussex Somerset | Match abandoned without a ball bowled | |
| South Group, 18 Jun 2021, Fri - 11:30 PM The Cloudfm County Ground, Chelmsford, England | Essex Gloucestershire | Match abandoned without a ball bowled | |
| South Group, 18 Jun 2021, Fri - 11:00 PM The Oval, London, England | Surrey Hampshire | Match abandoned without a ball bowled | |
| North Group, 18 Jun 2021, Fri - 11:00 PM Edgbaston, Birmingham, England | Warwickshire Lancashire | Match abandoned without a ball bowled | |
| North Group, 18 Jun 2021, Fri - 11:00 PM Headingley, Leeds, England | Yorkshire Durham | Match abandoned without a ball bowled | |
| North Group, 18 Jun 2021, Fri - 10:30 PM Trent Bridge, Nottingham, England | Nottinghamshire 152/6 (15) Derbyshire 150/6 (15) | Notts Outlaws won by 2 runs | |
| North Group, 18 Jun 2021, Fri - 10:00 PM New Road, Worcester, England | Worcestershire Northamptonshire | Match abandoned without a ball bowled | |
| South Group, 18 Jun 2021, Fri - 9:30 PM Cardiff Wales Stadium, Cardiff, Wales | Glamorgan 150/9 (20) Middlesex 129/9 (20) | Glamorgan won by 21 runs | |
| North Group, 17 Jun 2021, Thu - 11:30 PM Emirates Riverside, Chester-le-Street, England | Lancashire 151/6 (20) Durham 153/4 (17.4) | Durham won by 6 wickets | |
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| South Group, 17 Jun 2021, Thu - 11:00 PM The Oval, London, England | Surrey Sussex | No Result | |
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| South Group, 15 Jun 2021, Tue - 11:30 PM The Cloudfm County Ground, Chelmsford, England | Essex 128/8 (20) Sussex 130/3 (14) | Sussex Sharks won by 7 wickets | |
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| South Group, 15 Jun 2021, Tue - 11:00 PM The County Ground, Taunton, England | Somerset 204/7 (20) Kent 157 (18) | Somerset won by 47 runs | |
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| North Group, 15 Jun 2021, Tue - 11:00 PM Emirates Riverside, Chester-le-Street, England | Nottinghamshire 195/5 (20) Durham 182/8 (20) | Notts Outlaws won by 13 runs | |
| North Group, 15 Jun 2021, Tue - 11:00 PM The County Ground, Northampton, England | Warwickshire 170/3 (20) Northamptonshire 115 (18.5) | Birmingham Bears won by 55 runs | |
| South Group, 15 Jun 2021, Tue - 10:00 PM Radlett Cricket Club, Radlett, England | Hampshire 215/6 (20) Middlesex 217/7 (19.4) | Middlesex won by 3 wickets | |
| South Group, 14 Jun 2021, Mon - 11:00 PM The Oval, London, England | Glamorgan 166/8 (20) Surrey 167/5 (18.2) | Surrey won by 5 wickets | |
| South Group, 13 Jun 2021, Sun - 11:00 PM St Lawrence Ground, Canterbury, England | Kent 183/5 (20) Gloucestershire 178/8 (20) | Kent Spitfires won by 5 runs | |
| North Group, 13 Jun 2021, Sun - 8:45 PM The County Ground, Northampton, England | Nottinghamshire 214/7 (20) Northamptonshire 200/7 (20) | Notts Outlaws won by 14 runs | |
| South Group, 13 Jun 2021, Sun - 7:00 PM Cardiff Wales Stadium, Cardiff, Wales | Essex 153/6 (20) Glamorgan 156/3 (19) | Glamorgan won by 7 wickets | |
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| North Group, 13 Jun 2021, Sun - 7:00 PM Grace Road, Leicester, England | Leicestershire 168/9 (20) Durham 170/8 (19) | Durham won by 2 wickets | |
| South Group, 12 Jun 2021, Sat - 11:30 PM The 1st Central County Ground, Hove, England | Hampshire 154/7 (20) Sussex 155/1 (16.2) | Sussex Sharks won by 9 wickets | |
| South Group, 11 Jun 2021, Fri - 11:30 PM St Lawrence Ground, Canterbury, England | Kent 178/8 (20) Middlesex 162/8 (20) | Kent Spitfires won by 16 runs | |
| South Group, 11 Jun 2021, Fri - 11:30 PM The Cloudfm County Ground, Chelmsford, England | Hampshire 155/6 (20) Essex 142 (19.2) | Hampshire Hawks won by 13 runs | |
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| South Group, 11 Jun 2021, Fri - 11:00 PM Bristol County Ground, Bristol, England | Gloucestershire 177/7 (20) Sussex 178/5 (17.2) | Sussex Sharks won by 5 wickets | |
| South Group, 11 Jun 2021, Fri - 11:00 PM The County Ground, Taunton, England | Somerset 187/6 (20) Surrey 188/3 (16) | Surrey won by 7 wickets | |
| North Group, 11 Jun 2021, Fri - 11:00 PM Emirates Riverside, Chester-le-Street, England | Durham 181/8 (20) Yorkshire 161/6 (20) | Durham won by 20 runs | |
| North Group, 11 Jun 2021, Fri - 11:00 PM Trent Bridge, Nottingham, England | Warwickshire 229/5 (20) Nottinghamshire 211/9 (20) | Birmingham Bears won by 18 runs | |
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| South Group, 10 Jun 2021, Thu - 11:30 PM Lord's Cricket Ground, London, England | Surrey 223/7 (20) Middlesex 169/9 (20) | Surrey won by 54 runs | |
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| South Group, 10 Jun 2021, Thu - 10:00 PM Cardiff Wales Stadium, Cardiff, Wales | Gloucestershire 179/6 (20) Glamorgan 175/9 (20) | Gloucestershire won by 4 runs | |
| South Group, 09 Jun 2021, Wed - 11:30 PM St Lawrence Ground, Canterbury, England | Kent 176/6 (20) Hampshire 138/9 (20) | Kent Spitfires won by 38 runs | |
| South Group, 09 Jun 2021, Wed - 11:00 PM The County Ground, Taunton, England | Somerset 185/7 (20) Essex 187/7 (18.5) | Essex Eagles won by 3 wickets | |
| North Group, 09 Jun 2021, Wed - 10:00 PM New Road, Worcester, England | Worcestershire 152/6 (20) Nottinghamshire 152/8 (20) | Match Tied | |
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