| 12. Round | 20/02/2021 | Swift Hesperange | - | US Mondorf | 2:1 | ||||
| 11. Round | 10/03/2021 | US Mondorf | - | CS FOLA Esch | 1:2 | ||||
| 16. Round | 14/03/2021 | US Mondorf | - | FC Rodange 91 | 0:0 | ||||
| 17. Round | 21/03/2021 | FC Differdange 03 | - | US Mondorf | 1:2 | ||||
| 19. Round | 05/04/2021 | RFCU Luxemburg | - | US Mondorf | 1:0 |  |
|||
| 20. Round | 11/04/2021 | US Mondorf | - | UNA Strassen | 1:4 | ||||
| 18. Round | 14/04/2021 | US Mondorf | - | Jeunesse Esch | 2:3 | ||||
| 21. Round | 18/04/2021 | F91 Dudelange | - | US Mondorf | 3:0 | ||||
| 25. Round | 02/05/2021 | CS FOLA Esch | - | US Mondorf | 2:3 |
France