While the gap to the top six is now nine points, the Blues will now have to be looking over their shoulders with just seven points now the difference to the relegation zone.
That’s after a dismal run of just one win in their last 15 league games has seen them drop to 15th in the table with their last maximum points coming October.
Their defeat against Bolton on Saturday represented their sixth loss in their previous nine outings in all competitions.
Within the midst of that, boss Danny Cowley was sacked on New Year's Day as Michael Eisner & Co searched for ways to reignite their campaign.
But as fears grow over Pompey’s threat of falling in to League Two, we’ve taken a look at FiveThirtyEight’s predictions to discover if they believe the Blues will survive the drop this season.
