| P | W | T | L | D | A | BatBP | BowBP | Adj | Pts | |||
| 1 | Somerset | 5 | 4 | 0 | 0 | 1 | 0 | 10 | 15 | 0 | 97 | |
| 2 | Worcestershire | 5 | 2 | 0 | 1 | 2 | 0 | 14 | 12 | 0 | 74 | |
| 3 | Warwickshire | 5 | 0 | 0 | 1 | 4 | 0 | 7 | 14 | 0 | 53 | |
| 4 | Northamptonshire | 5 | 1 | 0 | 2 | 2 | 0 | 4 | 13 | 0 | 49 | |
| 5 | Gloucestershire | 5 | 1 | 0 | 2 | 2 | 0 | 3 | 10 | 0 | 45 | |
| 6 | Glamorgan | 5 | 0 | 0 | 2 | 3 | 0 | 6 | 13 | 0 | 43 |
| P | W | T | L | D | A | BatBP | BowBP | Adj | Pts | |||
| 1 | Yorkshire | 5 | 3 | 0 | 0 | 2 | 0 | 11 | 12 | 0 | 87 | |
| 2 | Derbyshire | 5 | 2 | 0 | 1 | 2 | 0 | 13 | 13 | 0 | 74 | |
| 3 | Lancashire | 5 | 2 | 0 | 1 | 2 | 0 | 7 | 11 | 0 | 66 | |
| 4 | Nottinghamshire | 5 | 0 | 0 | 2 | 3 | 0 | 20 | 15 | 0 | 59 | |
| 5 | Leicestershire | 5 | 1 | 0 | 2 | 2 | 0 | 4 | 13 | 0 | 49 | |
| 6 | Durham | 5 | 0 | 0 | 2 | 3 | 0 | 7 | 10 | 0 | 41 |
| P | W | T | L | D | A | BatBP | BowBP | Adj | Pts | |||
| 1 | Essex | 5 | 4 | 0 | 0 | 1 | 0 | 6 | 12 | 0 | 90 | |
| 2 | Kent | 5 | 3 | 0 | 1 | 1 | 0 | 12 | 15 | -1 | 82 | |
| 3 | Middlesex | 5 | 2 | 0 | 2 | 1 | 0 | 8 | 14 | 0 | 62 | |
| 4 | Hampshire | 5 | 2 | 0 | 2 | 1 | 0 | 4 | 13 | 0 | 57 | |
| 5 | Surrey | 5 | 1 | 0 | 4 | 0 | 0 | 8 | 12 | 0 | 36 | |
| 6 | Sussex | 5 | 1 | 0 | 4 | 0 | 0 | 9 | 11 | -24 | 12 |
| Points Awarded and Column Key: | |
| Won (W): 16 | |
| Tied (T): 8 | |
| Lost (L): 0 | |
| Drawn (D): 8 | |
| Abandoned without a ball bowled (A): 8 | |
| Batting Bonus Points (BatBP) | |
| Bowling Bonus Points (BowBP) | |
| Adjustments (carried forward/fines/penalty points) (Adj) | |
| Total points (Pts) |
| Order in the table: | |
| Position of teams in the table is determined by: | |
| Total points | |
| Won | |
| Lost (fewest) |
| Adjustments: | |
| South Group | |
| Kent: 1 point deducted for slow over-rate in match against Surrey on 22nd August 2020 | |
| Sussex: 24 points deducted for disciplinary penalty in match against Middlesex on 22nd August 2020 |
