All countries
| 15. Round | Andorra | Leganes | details | 20.11.2026 20:30 | |||
| 14. Round | Leganes | Burgos CF | 3:1 (3:0, 0:1) | details | 13.11.2026 | |||
| 1/64-finals | Trival Valderas | Leganes | 0:1 (0:0, 0:1) | details | 10.11.2026 | |||
| 13. Round | Leganes | Albacete | 1:3 (0:2, 1:1) | details | 07.11.2026 | |||
| 12. Round | Valladolid | Leganes | 4:3 (3:1, 1:2) | details | 02.11.2026 | |||
| 11. Round | Leganes | Mallorca | 1:1 (0:1, 1:0) | details | 24.10.2026 | |||
| 15. Round | Andorra | Leganes | details | 20.11.2026 20:30 | |||
| 16. Round | Leganes | Sabadell | details | 27.11.2026 20:30 | |||
| 17. Round | Real Sociedad B | Leganes | details | 06.12.2026 17:00 | |||
| 18. Round | Leganes | Ceuta | details | 13.12.2026 17:00 | |||