Colby Bishop headed home Joe Morrell’s right-wing cross to open the scoring in the 24th minute, albeit completely against the run of play.
It marked a transformation in the Blues’ game, with John Mousinho’s side suddenly looking the better side, and it continued early into the second half.
However, substitute James Collins levelled with 19 minutes remaining and the match finished 1-1, with Derby’s disappointment obvious as they push for play-off qualification.
Yet there were some sterling performances among Pompey’s players and here are our ratings...
13. josh murphy during the EFL Sky Bet Championship match between Derby County and Portsmouth at the Pride Park, Derby, England on 20 December 2025.
Josh Murphy in the first half against Derby. Picture: Steve Mower/ProSportsImages Photo: Steve Mower
14. Harvey Blair - 5
(Replaced Josh Murphy on 53 mins) Plenty of effort and always prepared to track back, but everything was all too a little chaotic. Photo: Graham Hunt
15. Adrian Segecic - 6
(Replaced Conor Chaplin on 66 mins) Add a bit more bite to proceedings. Photo: Graham Hunt
16. Marlon Pack - 6
(Replaced Mark Kosznovszky on 66 mins) Gave a bit more physicality and control to the centre of midfield. Photo: Graham Hunt