Following a goalless draw with little between the sides, the second-round fixture headed into a penalty shoot-out at a packed Bypass Ground.
However, Ciaran Martin and Chinedu Agu both missed their spot-kicks, with Aaron Scott grabbing the winner for the hosts, who claimed a 7-6 victory.
And here are our Pompey player ratings...
5. Beau Mullins - 7
A fierce competitor who, at one stage received a talking to from the referee, the left-back loves to get forward and has a real energy about his game. Photo: Jason Brown
6. Reggie Buckland - 7
A dominant presence in the centre of midfield. Competed well and always willing to fight for the ball and put a foot in. Photo: Jason Brown
7. Ciaran Martin - 7
Thrusting runs from the centre of midfield and has a good eye for a pass. Not afraid to drive forward with the ball from deep. Missed one of Pompey's penalties. Photo: Jason Brown
8. Max Hammond - 7
(Replaced by Dexter Lee on 89 minutes) Hard-working display down the right flank, then switched over to the left in the second half to show his versatility. Dogged and tireless for the Blues. Photo: Jason Brown