[6] Real Sociedad C 1-0 Sestao River [7] 2021-09-12 14:00
Stadium: Instalaciones de Zubieta Round: 2
Head to Head
| Hispaania Tercera - 4. alagrupp | 2021/03/20 16:00 | Sestao River v Real Sociedad C | L | 2-0 |
| Hispaania Tercera - 4. alagrupp | 2021/01/03 10:30 | Real Sociedad C v Sestao River | L | 1-2 |
| Hispaania Tercera - 4. alagrupp | 2019/10/20 15:30 | Real Sociedad C v Sestao River | L | 1-4 |
| Hispaania Tercera - 4. alagrupp | 2019/03/16 17:30 | Real Sociedad C v Sestao River | L | 0-4 |
| Hispaania Tercera - 4. alagrupp | 2018/10/28 17:30 | Sestao River v Real Sociedad C | W | 2-3 |
| Hispaania Tercera - 4. alagrupp | 2018/05/12 16:30 | Sestao River v Real Sociedad C | L | 5-0 |
| Hispaania Tercera - 4. alagrupp | 2017/12/23 14:30 | Real Sociedad C v Sestao River | L | 0-1 |