Primera RFEF Grupo 1   M. W D L goals
  at home 2 1 1 0 4 : 2
  Away 2 0 1 1 2 : 4
  4 1 2 1 6 : 6
Primera RFEF Grupo 2   M. W D L goals
  at home 1 0 0 1 0 : 1
  Away 1 0 0 1 1 : 2
  2 0 0 2 1 : 3
Segunda B Grupo 2   M. W D L goals
  at home 10 4 4 2 16 : 9
  Away 10 2 2 6 7 : 14
  20 6 6 8 23 : 23
overall   M. W D L goals
  at home 13 5 5 3 20 : 12
  Away 13 2 3 8 10 : 20
  Neutral Place 0 0 0 0 0 : 0
  26 7 8 11 30 : 32
Primera RFEF Grupo 1
2024/2025 38. Round Athletic Club B - Real Unión 4:2 (0:0)
2024/2025 16. Round Real Unión - Athletic Club B 3:1 (2:1)
2021/2022 32. Round Real Unión - Athletic Club B 1:1 (1:1)
2021/2022 9. Round Athletic Club B - Real Unión 0:0 (0:0)
Primera RFEF Grupo 2
2022/2023 33. Round Real Unión - Athletic Club B 2:1 (1:0)
2022/2023 19. Round Athletic Club B - Real Unión 0:1 (0:0)
Segunda B Grupo 2
2020/2021 22. Round Real Unión - Athletic Club B 0:1 (0:0)
2020/2021 11. Round Athletic Club B - Real Unión 0:0 (0:0)
2019/2020 28. Round Athletic Club B - Real Unión 3:3 (2:0)
2019/2020 9. Round Real Unión - Athletic Club B 0:1 (0:1)
2018/2019 37. Round Athletic Club B - Real Unión 2:0 (1:0)
2018/2019 18. Round Real Unión - Athletic Club B 1:0 (0:0)
2017/2018 22. Round Real Unión - Athletic Club B 1:0 (1:0)
2017/2018 3. Round Athletic Club B - Real Unión 4:0 (2:0)
2016/2017 32. Round Athletic Club B - Real Unión 1:2 (1:2)
2016/2017 13. Round Real Unión - Athletic Club B 3:1 (2:0)
2014/2015 29. Round Athletic Club B - Real Unión 1:2 (0:1)
2014/2015 10. Round Real Unión - Athletic Club B 1:1 (1:1)
2013/2014 34. Round Real Unión - Athletic Club B 1:0 (0:0)
2013/2014 15. Round Athletic Club B - Real Unión 1:1 (0:0)
2012/2013 37. Round Real Unión - Athletic Club B 2:1
2012/2013 18. Round Athletic Club B - Real Unión 2:0
2011/2012 30. Round Athletic Club B - Real Unión 1:1
2011/2012 11. Round Real Unión - Athletic Club B 3:0
2010/2011 21. Round Athletic Club B - Real Unión 1:0
2010/2011 2. Round Real Unión - Athletic Club B 2:2

For games that were decided on penalties the score after 120 minutes will be included in the ranking