Friendlies Clubs   M. W D L goals
  Away 1 1 0 0 2 : 0
  1 1 0 0 2 : 0
Championship   M. W D L goals
  at home 17 8 3 6 34 : 25
  Away 17 5 6 6 20 : 25
  34 13 9 12 54 : 50
FA Cup   M. W D L goals
  at home 2 0 2 0 4 : 4
  Away 2 1 0 1 1 : 2
  4 1 2 1 5 : 6
League Cup   M. W D L goals
  at home 5 1 3 1 5 : 5
  Away 6 1 0 5 8 : 17
  11 2 3 6 13 : 22
League One   M. W D L goals
  at home 2 1 0 1 3 : 2
  Away 2 0 0 2 1 : 8
  4 1 0 3 4 : 10
overall   M. W D L goals
  at home 26 10 8 8 46 : 36
  Away 28 8 6 14 32 : 52
  Neutral Place 0 0 0 0 0 : 0
  54 18 14 22 78 : 88
Friendlies Clubs
2018 Week Swindon Town - Portsmouth FC 0:2 (0:0)
Championship
1999/2000 39. Round Portsmouth FC - Swindon Town 4:1 (3:0)
1999/2000 24. Round Swindon Town - Portsmouth FC 1:1 (1:0)
1998/1999 32. Round Swindon Town - Portsmouth FC 3:3 (3:1)
1998/1999 8. Round Portsmouth FC - Swindon Town 5:2 (2:0)
1997/1998 8. Round Swindon Town - Portsmouth FC 0:1 (0:0)
1997/1998 3. Round Portsmouth FC - Swindon Town 0:1 (0:1)
1996/1997 25. Round Portsmouth FC - Swindon Town 0:1 (0:0)
1996/1997 6. Round Swindon Town - Portsmouth FC 0:1 (0:0)
1994/1995 9. Round Swindon Town - Portsmouth FC 0:2
1994/1995 3. Round Portsmouth FC - Swindon Town 4:3
1992/1993 7. Round Swindon Town - Portsmouth FC 1:0
1992/1993 3. Round Portsmouth FC - Swindon Town 3:1
1991/1992 8. Round Portsmouth FC - Swindon Town 1:1
1991/1992 4. Round Swindon Town - Portsmouth FC 2:3
1990/1991 7. Round Portsmouth FC - Swindon Town 2:1
1990/1991 4. Round Swindon Town - Portsmouth FC 3:0
1989/1990 7. Round Portsmouth FC - Swindon Town 1:1
1989/1990 4. Round Swindon Town - Portsmouth FC 2:2
1988/1989 6. Round Portsmouth FC - Swindon Town 0:2
1988/1989 2. Round Swindon Town - Portsmouth FC 1:1
1973/1974 8. Round Swindon Town - Portsmouth FC 1:2
1973/1974 3. Round Portsmouth FC - Swindon Town 3:1
1972/1973 5. Round Portsmouth FC - Swindon Town 1:1
1972/1973 2. Round Swindon Town - Portsmouth FC 1:1
1971/1972 8. Round Portsmouth FC - Swindon Town 1:2
1971/1972 5. Round Swindon Town - Portsmouth FC 3:1
1970/1971 9. Round Portsmouth FC - Swindon Town 0:2
1970/1971 2. Round Swindon Town - Portsmouth FC 2:1
1969/1970 8. Round Swindon Town - Portsmouth FC 3:1
1969/1970 3. Round Portsmouth FC - Swindon Town 3:1
1964/1965 6. Round Swindon Town - Portsmouth FC 0:0
1964/1965 2. Round Portsmouth FC - Swindon Town 5:0
1963/1964 5. Round Swindon Town - Portsmouth FC 2:0
1963/1964 1. Round Portsmouth FC - Swindon Town 1:4
FA Cup
1988/1989 3. Round Swindon Town - Portsmouth FC 2:0
1988/1989 3. Round Portsmouth FC - Swindon Town 1:1
1973/1974 3. Round Swindon Town - Portsmouth FC 0:1
1973/1974 3. Round Portsmouth FC - Swindon Town 3:3
League Cup
1993/1994 3. Round Portsmouth FC - Swindon Town 2:0 (0:0)
1987/1988 2. Round Portsmouth FC - Swindon Town 1:3
1987/1988 2. Round Swindon Town - Portsmouth FC 3:1
1979/1980 1. Round Swindon Town - Portsmouth FC 2:0
1979/1980 1. Round Portsmouth FC - Swindon Town 1:1
1978/1979 1. Round Swindon Town - Portsmouth FC 4:2
1978/1979 1. Round Portsmouth FC - Swindon Town 0:0
1977/1978 3. Round Swindon Town - Portsmouth FC 4:3
1977/1978 3. Round Portsmouth FC - Swindon Town 1:1
1974/1975 1. Round Swindon Town - Portsmouth FC 0:1
1966/1967 2. Round Swindon Town - Portsmouth FC 4:1
League One
2020/2021 43. Round Swindon Town - Portsmouth FC 3:1 (1:0)
2020/2021 20. Round Portsmouth FC - Swindon Town 2:0 (1:0)
2012/2013 26. Round Swindon Town - Portsmouth FC 5:0 (0:0)
2012/2013 7. Round Portsmouth FC - Swindon Town 1:2 (0:1)

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