Championship   M. W D L goals
  at home 3 0 2 1 3 : 6
  Away 3 2 0 1 5 : 6
  6 2 2 2 8 : 12
FA Cup   M. W D L goals
  at home 1 0 0 1 0 : 1
  Away 1 1 0 0 2 : 1
  2 1 0 1 2 : 2
League Cup   M. W D L goals
  at home 2 0 2 0 2 : 2
  Away 5 1 0 3 2 : 5
  7 1 2 3 4 : 7
League One   M. W D L goals
  at home 6 4 0 2 8 : 5
  Away 6 1 1 4 7 : 13
  12 5 1 6 15 : 18
EFL Trophy   M. W D L goals
  at home 1 1 0 0 5 : 1
  Away 1 0 0 1 0 : 1
  2 1 0 1 5 : 2
overall   M. W D L goals
  at home 13 5 4 4 18 : 15
  Away 16 5 1 9 16 : 26
  Neutral Place 0 0 0 0 0 : 0
  29 10 5 13 34 : 41
Championship
2011/2012 28. Round Peterborough United - Portsmouth FC 0:3 (0:2)
2011/2012 9. Round Portsmouth FC - Peterborough United 2:3 (1:2)
1993/1994 6. Round Portsmouth FC - Peterborough United 0:2
1993/1994 3. Round Peterborough United - Portsmouth FC 2:2
1992/1993 9. Round Portsmouth FC - Peterborough United 4:0
1992/1993 5. Round Peterborough United - Portsmouth FC 1:1
FA Cup
1967/1968 3. Round Peterborough United - Portsmouth FC 0:1
1960/1961 3. Round Portsmouth FC - Peterborough United 1:2
League Cup
2023/2024 2. Round Portsmouth FC - Peterborough United 4:5 (0:1, 1:1) pso
2014/2015 1. Round Portsmouth FC - Peterborough United 1:0 (1:0)
2002/2003 1. Round Portsmouth FC - Peterborough United 2:0 (1:0)
1997/1998 1. Round Portsmouth FC - Peterborough United 1:2 (1:1)
1997/1998 1. Round Peterborough United - Portsmouth FC 2:2 (1:2)
1993/1994 Round of 16 Portsmouth FC - Peterborough United 1:0 (0:0, 0:0) aet
1993/1994 Round of 16 Peterborough United - Portsmouth FC 0:0 (0:0)
League One
2023/2024 39. Round Peterborough United - Portsmouth FC 0:1 (0:0)
2023/2024 6. Round Portsmouth FC - Peterborough United 3:1 (2:1)
2022/2023 29. Round Peterborough United - Portsmouth FC 2:1 (2:0)
2022/2023 7. Round Portsmouth FC - Peterborough United 2:1 (1:1)
2020/2021 36. Round Peterborough United - Portsmouth FC 1:0 (1:0)
2020/2021 16. Round Portsmouth FC - Peterborough United 2:0 (0:0)
2019/2020 37. Round Peterborough United - Portsmouth FC 2:0 (1:0)
2019/2020 20. Round Portsmouth FC - Peterborough United 2:2 (1:1)
2018/2019 40. Round Portsmouth FC - Peterborough United 2:3 (1:2)
2018/2019 8. Round Peterborough United - Portsmouth FC 1:2 (0:0)
2017/2018 46. Round Portsmouth FC - Peterborough United 2:0 (2:0)
2017/2018 19. Round Peterborough United - Portsmouth FC 2:1 (0:0)
EFL Trophy
2020/2021 Round of 16 Peterborough United - Portsmouth FC 5:1 (3:0)
2018/2019 Quarter-finals Portsmouth FC - Peterborough United 1:0 (0:0)

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