Pompey began their pre-season programme with a 4-0 win against the Hawks.
Second-half strikes from Joel Ward, Hayden Mullins, Dave Kitson and Luke Varney gave the Blues a comfortable win over their Blue Square South neighbours, handing Pompey the perfect tonic ahead of their glamour friendly with Chelsea on Saturday.
The Blues included all their summer signings, with David Norris skippering the side on his debut.
Jason Pearce, Varney and the returning Greg Halford were also included, while youngster Lewis Stockford was named in the starting line-up.
The focus was all on the new boys, with Pompey fans desperate to see them impress.
And they didn’t let them down, with Varney, in particular, shining.
Playing out on the left, he posed a constant threat and had a hand in Pompey’s second goal - laying up for Mullins to score with a piledriver from 20 yards.
That goal came seven minutes after Joel Ward’s opener on the hour mark, after the midfielder was set up by substitute Ryan Williams.
Dave Kitson added a third nine minutes before the end, firing home after Hawks keeper Nathan Ashmore parried his original shot.
And the impressive Varney sealed the victory with an impressive finish on 89 minutes to round off a fantastic debut for the Blues.
Pompey boss Steve Cotterill made several substitutions during the second half, with Hermann Hreidarsson making a cameo appearance.
David Norris was also taken off 12 minutes from time, with the boss handing young hope Sam Magri a run-out in front of the travelling Pompey fans fresh from his heroics with the England Under-17 team at the World Cup.