Flames, fireworks and a guard of honour from visitors Institute set the scene for a joyful evening ahead of Niall Currie’s side lifting the trophy after their final game of the season.
The team had already secured glory by drawing with Dundela the previous weekend with enough to seal immediate promotion back to the top-flight.
Check out these great photos from Friday evening, starting with the family fun event before the match.
21. Celebration time
Portadown captain Gary Thompson is presented with the trophy by Darren McPolin from Playr-Fit. Photo: Jonathan Porter/Press Eye
22. Celebration time
Portadown pictured at the start of the match during a minute's silence. Photo: Jonathan Porter/Press Eye
23. Celebration time
The match finishes with Institute winning 0-1 but Portadown are presented with Playr-Fit Championship trophy for winning the league and gaining promotion to the Premiership. Photo: Jonathan Porter/Press Eye
24. Celebration time
A night to remember at Shamrock Park. Photo: Jonathan Porter/Press Eye