| 13/06/15 | UCAM Murcia CF | - | Athletic Club B | 1:1 | |||||
| Segunda | 24/08/15 | Athletic Club B | - | Girona FC | 0:1 | ||||
| Segunda | 03/10/15 | Córdoba CF | - | Athletic Club B | 1:0 |
| 13/06/15 | UCAM Murcia CF | - | Athletic Club B | 1:1 | |||||
| Segunda | 24/08/15 | Athletic Club B | - | Girona FC | 0:1 | ||||
| Segunda | 03/10/15 | Córdoba CF | - | Athletic Club B | 1:0 |
| Iker Undabarrena Martínez | |
| Born: | 18.05.1995 |
| Place of birth: |
Gorliz, 
Spain |
| Nationality: |
Spain
|
| Height: | 181 cm |
| Weight: | 77 kg |
| Position(s): | Central Midfielder Defensive Midfielder |
| Foot: | right |