There are now just a dozen matches remaining for Pompey to maintain their position at the League One summit.
The side have rediscovered their form at exactly the right time to build a useful advantage over the chasing pack.
Sean Raggett believes the final couple of months are going to fly by as the promotion race reaches its climax.
And the defender hopes the Blues have further reason to celebrate when they make the trip to Charlton on Saturday.
He said: “We’re looking to win every game that we go into and at this stage of the season, it’s just about ticking them off.
“Obviously you take a lot at the results to see what the other sides have done, but you don’t focus on that too much.
"From my experience, those 12 matches are going to go by really quickly and we’ll just take each one as it comes."
“We’re more just concentrating on ourselves and the three points we can collect whenever we step out onto the pitch.
“It’s definitely the business end of the season that we’re in right now and the games are starting to run out.
“From my experience, those 12 matches are going to go by really quickly and we’ll just take each one as it comes.
“Charlton haven’t had the best of seasons, but since I’ve been at this club, they’ve always given us a tough game.
“There are a lot of good players in their squad and so we know we’ll have to be at our best to get anything.”
Raggett has excelled alongside Conor Shaughnessy at the heart of Pompey’s defence since replacing the injured Regan Poole in November.
He said: “I enjoy being in that partnership – he’s been brilliant for us this season. We’ve played a lot of games together and have a good understanding.”