Fulham's American striker Brian McBride scored his first goal for the Londoners a few minutes later to tie up the game, but it mattered not in the end as Portsmouth held on the draw they needed.
Harry Redknapp was understandably delighted, gasping: "I thought it would go to the last game of the season and so I'm delighted to be safe with three still to go.
"Just getting in the promotion play-offs last season would have been terrific but winning the championship was outstanding.
"And this season we could have crumbled after Arsenal whacked us 5-1 here in the FA Cup."
Redknapp's opposite number, Chris Coleman, who himself steered a free-falling Fulham away from trouble a year ago, was complimentary of Portsmouth's achievement, adding: "Portsmouth have hit a bit of form just at the right time. It is a good point to get because for one thing the crowd here are magnificent".