| 1. Round | 17/12/2019 | SD Tarazona | - | Rayo Vallecano | 0:1 aet | ||||
| 2. Round | 12/01/2020 | Barakaldo CF | - | Rayo Vallecano | 0:2 |  |
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| 3. Round | 23/01/2020 | Rayo Vallecano | - | Real Betis | 4:2 pso | ||||
| Round of 16 | 29/01/2020 | Rayo Vallecano | - | Villarreal CF | 0:2 |
| 1. Round | 17/12/2019 | SD Tarazona | - | Rayo Vallecano | 0:1 aet | ||||
| 2. Round | 12/01/2020 | Barakaldo CF | - | Rayo Vallecano | 0:2 | |
|||
| 3. Round | 23/01/2020 | Rayo Vallecano | - | Real Betis | 4:2 pso | ||||
| Round of 16 | 29/01/2020 | Rayo Vallecano | - | Villarreal CF | 0:2 |
| Martín Pascual Castillo | |
| Born: | 04.08.1999 |
| Place of birth: |
Madrid, 
Spain |
| Nationality: |
Spain
|
| Height: | 190 cm |
| Weight: | 78 kg |
| Position(s): | Centre Back |
| Foot: | right |