Harry Anderson continued his prolific form, but that could not prevent Pompey Academy from slipping to a 4-2 defeat to Bournemouth.
The table-topping Cherries went ahead through Jack Wadham in the opening stages at Furze Lane and Jake Adams doubled their advantage.
Anderson reduced the Blues’ deficit before the break, however, prodding home at the back post from a corner.
Euan Pollock capitalised on a defensive mistake to restore the visitors’ two-goal lead, only for Anderson to hit back with a close-range finish.
The striker then missed an excellent opportunity to level the contest, but could not keep his shot down and Marcus Daws made the most of that let-off to wrap things up for Bournemouth.
Professional development phase coach Liam Daish said: “It was a really good game against the side who are top of our league. They always provide a different test to the other sides in the division.
“But three of their goals came from individual mistakes from us and while you might get away with it most weeks, a team like that will punish you.
"Both sides contributed to a really good game of football, but when you play a side like Bournemouth, everything needs to be that bit sharper."
“We’d got it back to 2-1 at half-time, but an error meant Bournemouth scored again straight after the break, which set our plans back a bit.
“Harry got a second and had a great chance to complete his hat-trick and draw us level. He couldn’t make the right contact, though, with the ball going off his knee and over the bar.
“They went straight up the pitch from the resulting goal-kick and scored again to put the result beyond doubt.
“Both sides contributed to a really good game of football, but when you play a side like Bournemouth, everything needs to be that bit sharper.
“I couldn’t fault the application of our players at all, though, and they would have learnt a lot – I wish we could play teams of that calibre every week.
“It’s all about challenging the lads and they need to be stretched. Some might get the chance to start or come on in the Papa John’s Trophy on Tuesday and that will be an opportunity to really test themselves.
“They will certainly learn more from games like that, as will the academy coaching staff and the first team manager.”
Pompey: Pitman (Manderson 46); Setters, Cadman, Kaba, Rew; Jewitt-White, Bell; Dawson (Simpson 81), Lee, Brook; Anderson