John Mousinho used 22 players, playing a different team in each half, to ensure each player was handed a 45 minute outing in their opening pre-season fixture.
Man of the match Adrian Segecic broke the deadlock on 13 minutes and then Paddy Lane extended their lead in the 64th minutes to complete the victory.
And here are our Pompey player ratings...
21. Ciaran Martin - 6
(Replaced Adrian Segecic on 46 mins) Normally a full-back, the second-year scholar was given a midfield role and showed himself to be dogged and confident on the ball. Photo: Jason Brown
22. Dane Bailey - 6
(Replaced Thomas Waddingham on 46 mins) The first-year scholar almost capped his outing with a goal, drawing Ross into a fine late save. Photo: Graham Hunt
23. Chinedu Agu - 6
(Replaced Jermaine Osifo on 46 mins) Confident and full of running. Photo: Graham Hunt