Pompey suffered their heaviest defeat of the season, as Ipswich left Fratton Park with all three points.
The first half was an even contest, but a mistake at the back saw Danny Cowley's side fall behind to a Macauley Bonne goal just before the break.
It was a different story following the restart, however, as Conor Chaplin, Sone Aluko and Wes Burns all scored to a seal a 4-0 win for the Tractor Boys.
Fans can watch the key moments (top video) or register with iFollow for extended highlights (middle video) and a full match replay (bottom video).
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