Matt Mayes, Dan Smith, Leon Maloney and Jordan Brooks were all on target, as Pompey Academy enjoyed a thumping 4-1 victory over Oxford at Furze Lane.
The deadlock was broken midway through the first half when a low delivery from Bradley Lethbridge was turned into the net by Mayes.
And the advantage was doubled before the break, as Smith rose highest at the back post to convert Maloney’s cross.
The Blues continued their dominance after it, with Maloney (pictured) arriving into the box from out wide to add a third goal.
Oxford were able to reduce the deficit, but Brooks fired home following more good work from Maloney to wrap up a comfortable victory.
"I’ve spoken a lot about needing to be ruthless in front of goal, so it was pleasing to see us score so many.
Academy manager Mark Kelly said: “There was a lot of control from us and we were able to find more of a cutting edge in the final third.
“I’ve spoken a lot about needing to be ruthless in front of goal, so it was pleasing to see us score so many.
“There was a 10-minute spell in the second half when Oxford were chasing the game and put us under a bit of pressure.
“But we soon found our rhythm again and were able secure a really pleasing win, thanks to an encouraging performance.”
Pompey: Tombs; Brooks, Dandy, Casey, Hancott; Flint (Johnston 62), Read (Whiting 62), Maloney; Mayes, Smith, Lethbridge
Sub not used: Pitman