Stockport ended their first year back in League One in third place after beating Wycombe 3-1 at Adams Park and will face Leyton Orient in the play-offs.
Garath McCleary put the home side ahead but Luke Leahy then saw his penalty saved by Stockport goalkeeper Corey Addai around the hour mark.
The visitors capitalised when Benony Andresson levelled with 20 minutes left before Oliver Norwood, from the penalty spot, and Will Collar scored in quick succession to win it for County.
After Xavier Simons saw an audacious chip from inside his own half skim the top of the goal, Wycombe went ahead in the 31st minute when Dan Udoh set up McCleary for his first goal since January.
The turning point arrived just after the hour when Addai saved Leahy's penalty after Owen Moxon handled.
Icelandic forward Andresson smashed home his fourth of the campaign since ing in January before Norwood converted a penalty after he was tripped by Fred Onyedinma seven minutes later.
Then, with nine minutes remaining, Collar's first-time strike flew beyond Will Norris to seal Stockport's first win at Adams Park since April 2003.
Wycombe, who spent much of the season battling for automatic promotion, faded badly during the run-in, slipping to fifth place after this defeat and they will take on Charlton in the play-offs.
Match report supplied by PA Media.
