Gabor Gyepes was the goal hero again as Pompey grabbed a 2-1 win at Yeovil.
The Hungarian bagged his second goal in as many games as Michael Appleton’s men delivered another three points at Huish Park.
Izale McLeod made the breakthrough for the Blues before Reuben Reid converted a second-half penalty.
Then, Gyepes tucked away the decisive effort with 12 minutes remaining to seal a deserved win for the visitors.
There were plenty of chances for Pompey to make the breakthrough early on.
Mustapha Dumbuya broke three on one after five minutes and freed McLeod, who dallied and allowed Yeovil to clear.
McLeod then had a shot which Marek Stech pushed on to the post, before he gratefully gathered at the second attempt.
McLeod made the breakthrough after 13 minutes when he was put clear by Wes Thomas and ripped a shot home.
Thomas could have had a second when clean through 20 minutes later, but his shot went just wide.
Yeovil had strong penalty appeals turned down just before the break when Thomas clattered Keanu Marsh-Brown, but ref Chis Foy waved play on.
But they got a spot-kick 24 minutes after the restart as Lee Williamson fouled Nathan Ralph and Reid beat Andersen.
Gyepes did the business on 78 minutes, however, with a smart finish on the turn from a corner to send nearly 1,300 soaked travelling fans home smiling.