Portsmouth replaced Hull City at the top of League One with victory at the KCOM Stadium.
Own goals from Jacob Greaves and Josh Magennis were the defining moments of a scruffy encounter which extended Pompey's unbeaten league run to four.
Greaves was firstly out of position from Cameron Pring's sixth-minute corner and tamely went to ground under pressure from Sean Raggett.
Raggett appeared to have volleyed Pompey into the lead, but the final touch was adjudged to have come off Greaves' head and skewed into the right corner.
Hull had plenty of possession thereafter but rarely looked like scoring against a well-organised Portsmouth backline.