español
2021 Main
Group A
| Pts | W | L | D | N/R | Pts | |||
| 1 | Durham | 8 | 6 | 1 | 0 | 1 | 2105:1798 | 13 |
| 2 | Essex | 8 | 5 | 2 | 1 | 0 | 1808:1892 | 11 |
| 3 | Gloucestershire | 7 | 4 | 3 | 0 | 0 | 1435:1583 | 8 |
| 4 | Lancashire | 8 | 3 | 2 | 1 | 2 | 1307:1437 | 9 |
| 5 | Worcestershire | 8 | 3 | 4 | 0 | 1 | 1830:1565 | 7 |
| 6 | Hampshire | 8 | 3 | 4 | 0 | 1 | 1479:1334 | 7 |
| 7 | Sussex | 8 | 2 | 4 | 0 | 2 | 1505:1704 | 6 |
| 8 | Middlesex | 7 | 2 | 4 | 0 | 1 | 1522:1591 | 5 |
| 9 | Kent | 8 | 1 | 5 | 0 | 2 | 1322:1409 | 4 |
Group B
| Pts | W | L | D | N/R | Pts | |||
| 1 | Glamorgan | 8 | 4 | 2 | 0 | 2 | 1134:1072 | 10 |
| 2 | Surrey | 8 | 4 | 2 | 0 | 2 | 1324:1300 | 10 |
| 3 | Yorkshire | 8 | 4 | 2 | 0 | 2 | 1311:1269 | 10 |
| 4 | Leicestershire | 8 | 4 | 3 | 0 | 1 | 1897:1864 | 9 |
| 5 | Warwickshire / Birmingham Bears | 8 | 4 | 4 | 0 | 0 | 2084:2064 | 8 |
| 6 | Nottinghamshire | 8 | 3 | 3 | 0 | 2 | 1235:1236 | 8 |
| 7 | Somerset | 8 | 3 | 3 | 0 | 2 | 1474:1556 | 8 |
| 8 | Northamptonshire | 8 | 2 | 4 | 0 | 2 | 1339:1455 | 6 |
| 9 | Derbyshire | 8 | 1 | 6 | 0 | 1 | 1531:1513 | 3 |
Promotion ~ One~Day Cup (Play Offs: Semi~finals)
Promotion ~ One~Day Cup (Play Offs: Quarter~finals)
2021 Play Offs
Quarter-finals
| 1 | Glamorgan | Bye | |
| 2 | Essex | Yorkshire | 317 : 188 |
| 3 | Durham | Bye | |
| 4 | Surrey | Gloucestershire | 246 : 242 |
Semi-finals
| 1 | Glamorgan | Essex | 293 : 289 |
| 2 | Durham | Surrey | 281 : 280 |
Final
| 1 | Glamorgan | Durham | 296 : 238 |