Pompey currently sit eighth in the table, with 10 wins, six draws, and six defeats from their opening 22 matches.
That run of form has left them with 36 points – one outside of the play-offs and eight adrift of Rotherham United at the summit.
But can they hope to continue their promotion-chasing form over the course of the remainder of the season?
FiveThirtyEight have meticulously simulated the last 24 games of the campaign to predict how League One' s final standings will look by the time May comes around.
But where will Pompey finish when all is said and done?
We’ve gathered all of the details you need to know, including the percentage probability of them making the play-offs. Check out our countdown from 24th to first below…
17. 8th - Portsmouth
Points: 72 Goal Difference: +11 Probability of making play-offs: 28% (Photo by Jacques Feeney/Getty Images) Photo: Jacques Feeney
18. 7th - MK Dons
Points: 76 Goal Difference: +22 Probability of making play-offs: 39% (Photo by Pete Norton/Getty Images) Photo: Pete Norton
19. 6th - Wycombe Wanderers
Points: 79 Goal Difference: +17 Probability of making play-offs: 47% (Photo by Warren Little/Getty Images) Photo: Warren Little
20. 5th - Sheffield Wednesday
Points: 80 Goal Difference: +24 Probability of making play-offs: 51% (Photo by George Wood/Getty Images) Photo: George Wood