Four wins in a row have cemented Pompey’s spot in the play-off places with eight games left to play.
Interestingly, if the league table was decided on away form alone, the Fratton Park outfit would still be there or thereabouts in terms of their promotion hopes.
The same cannot be said of their home form, which has been disappointingly poor at times this season.
Pompey have won just eight of their 20 home fixtures to date, drawing five and losing seven.
That's the 14th-best record in the division, but how does it compare to their home record over the past decade?
Bankrate.com have run the number on every League One side to see who has built up the strongest home fortress over the past 10 years.
Click and scroll through our countdown below...
9. Ipswich Town
Games played: 240 Points: 367 PPG: 1.53 Win rate: 42% (Photo by Pete Norton/Getty Images) Photo: Pete Norton
10. Charlton Athletic
Games played: 244 Points: 376 PPG: 1.54 Win rate: 42% (Photo by Pete Norton/Getty Images) Photo: Pete Norton
11. Gillingham
Games played: 240 Points: 372 PPG: 1.55 Win rate: 43% (Photo by Henry Browne/Getty Images) Photo: Henry Browne
12. Portsmouth
Games played: 241 Points: 375 PPG: 1.56 Win rate: 46% (Photo by Dan Istitene/Getty Images) Photo: Dan Istitene