In an extremely tight competition, the Pies must secure their spot in the top eight.
Coming from seventh on the ladder, Collingwood were the better team all day against second on the ladder, Southport.
Leading at every break, the Pies had control of the game.
Ollie Henry and Jack Madgen both slotted three for the day, whilst first goal scorer Harvey Harrison ended up with two.
Campbell Lane had a brilliant day out with 30 disposals and a goal to his name.
Other leading ball getters were Finn Macrae, Callum Brown, Campbell Hustwaite and Lachlan Tardrew.
Brodie Grundy made his return after his knee injury sustained on Anzac Day and proved he is match fit and ready.
With 21 hit outs and 9 tackles and 11 disposals, Grundy was influential throughout the ground.
Collingwood had full control of the game and gelled together strongly.
With the margin the smallest in the first quarter, Collingwood held their lead all game and showed promising signs leading into finals.
Collingwood are now sitting in sixth spot but need to win another couple of games to secure their spot in finals.
Collingwood face Williamstown next week at the AIA Centre, followed by Sydney in Sydney and Carlton at Ikon Park in the last round of the season.
Collingwood: 13.10 (88)
Southport: 6.14 (50)
Goals
Collingwood: Henry 3, Madgen 3, Harrison 2, Glover, Jetta, Lane, Molloy, Murley
Southport: Gowers 2, Manteit, Pescud, Townsend, Woodcock
Highlights below:
