Steve Cotterill has set Pompey a 75-point play-off target.
The Blues continue to climb the table following their impressive victory at Norwich last weekend.
That result left them five points off the play-off spots with a game in hand.
Next, they play relegation candidates Scunthorpe at Fratton Park on Saturday, a match they will be confident of winning.
For Cotterill's men, the busy Christmas period represents an opportunity to push on.
The top half of the Championship remains congested in the push for promotion.
In Cotterill's mind, around 75 points will definitely be enough to clinch a play-off spot.
And he is looking to his team to maintain their climb and close in on that tally.
He said: 'You need 73, 74 or 75 points for anyone to get to the play-
'It will be around about that at this moment in time.
'Things could change, though. In a two or three-month swing, that situation could change.
'It depends on where they go from now – but at that moment that's how I see it.
'Obviously the home games before Christmas are quite good for us and we're pleased to be at home on Boxing Day.
'Then we have a hike all the way up to Leeds and then another tough away trip to Watford, before we come back home to Hull City.
'They are all tough games over that period.
'It may be tougher for us if we don't get off to a good start. We need to get on a roll.'
Blackpool reached the play-offs with just 70 points last season.
They then beat Cardiff in the final to make the Premier League.
Nottingham Forest topped the play-off spots with 79 points.