John Mousinho has been named the Sky Bet League One Manager of the Month for September.
He oversaw a fine run of results that ensured Pompey remained unbeaten and climbed to the top of the table.
There were impressive victories over Peterborough, Barnsley, Lincoln and Wigan, along with a draw at Derby.
The Blues boss said: “It’s great to receive this award on behalf of all the staff and players for our run of positive results throughout September.
“Three of our five fixtures last month saw us on the road, making long trips to Derby, Barnsley and Wigan.
“The fact that we were backed by so many passionate Pompey fans at each of those games is a big reason why we were able to collect seven points from them.
“We have made a really pleasing start to the season, but are all aware that there is still a very long way to go. Our focus now is on maintaining the high standards that we have set for ourselves.”
"The fact that we were backed by so many passionate Pompey fans at each of those games is a big reason why we were able to collect seven points from them."
Danny Wilson, who chaired the judging panel, said: “Thirteen points from their five games is an excellent return, especially after playing three of the well-fancied teams in that block.
“John has created a great spirit around the club which has seen them gain top spot in League One.”
Sky Sports’ EFL pundit Don Goodman said: “Portsmouth sit top of the table after a testing fixture list in September.
“Thirteen points from 15 games, beating Barnsley and Peterborough along the way, is a testament to the quality and organisation of John Mousinho’s team.
“It won’t have been part of his plans, but trailing in four of their five games and coming out unbeaten shows that Portsmouth, at this stage, look to have what it takes to make a long-awaited return to the Championship.”
Mousinho saw off competition from Wycombe’s Matt Bloomfield, Blackpool’s Neil Critchley and Oxford’s Liam Manning to land the prize.
Pompey defender Regan Poole was nominated for the Sky Bet League One Player of the Month award, but lost out to Oxford’s Greg Leigh.