| 6. Round | 08/09/2017 | US Concarneau | - | Entente SSG | 1:1 | ||||
| 7. Round | 15/09/2017 | Rodez AF | - | US Concarneau | 0:0 | ||||
| 8. Round | 22/09/2017 | US Concarneau | - | US Boulogne | 1:0 | ||||
| 9. Round | 29/09/2017 | USL Dunkerque | - | US Concarneau | 2:0 | ||||
| 10. Round | 13/10/2017 | US Concarneau | - | US Créteil-Lusitanos | 1:1 | ||||
| 11. Round | 28/10/2017 | Red Star FC | - | US Concarneau | 3:1 |  |
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| 12. Round | 03/11/2017 | US Concarneau | - | Pau FC | 0:2 | ||||
| 14. Round | 24/11/2017 | US Concarneau | - | Marseille Consolat | 2:0 | ||||
| 18. Round | 12/01/2018 | US Concarneau | - | AS Béziers | 3:1 | |
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| 19. Round | 19/01/2018 | FC Chambly | - | US Concarneau | 0:2 | ||||
| 20. Round | 02/02/2018 | US Concarneau | - | Vendée Les Herbiers | 2:2 | ||||
| 21. Round | 09/02/2018 | AS Lyon Duchère | - | US Concarneau | 1:2 | |
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| 22. Round | 16/02/2018 | Entente SSG | - | US Concarneau | 1:1 | ||||
| 23. Round | 23/02/2018 | US Concarneau | - | Rodez AF | 2:1 | ||||
| 25. Round | 09/03/2018 | US Concarneau | - | USL Dunkerque | 2:1 | ||||
| 24. Round | 20/03/2018 | US Boulogne | - | US Concarneau | 1:1 | ||||
| 33. Round | 04/05/2018 | US Concarneau | - | Grenoble Foot 38 | 0:1 | ||||
| 34. Round | 11/05/2018 | Stade Lavallois | - | US Concarneau | 1:1 |
France