Dominic Gape’s second-half winner at Chesterfield will go down in Wanderers history as it secured automatic promotion to Sky Bet League One at the Proact Stadium.
A Michael Harriman own-goal put the Chairboys behind in the first-half, but Nathan Tyson levelled just before the break to set-up a second-half onslaught on the Spireites goal.
With both Exeter and Notts County losing, Wanderers knew a win would be enough, and they pushed and pushed and finally got their reward with just over 10 minutes to go, sparking jubilant scenes at full-time in the stands and on the pitch.
Gareth Ainsworth made four changes to his starting XI for this one, with Sido Jombati, Luke O'Nien, Randell Williams and Craig Mackail-Smith coming into the side. Adebayo Akinfenwa also returned to the bench.
The first opportunity of the game went to the Chairboys after five minutes; Matt Bloomfield picking up the ball on the edge, touching it out of his feet and striking wide of the near post.
Ten minutes played and Tyson used his pace to break out following a Chesterfield corner. He got to the edge of the Spireites’ box, crossed to Mackail-Smith but goalkeeper Aaron Ramsdale got there first to claim.
A superb flying stop from Scott Brown to his right kept the scores level on 19 minutes. A diagonal ball found Jerome Binnom-Williams on the left. He teed it up for Joe Rowley on the edge who hit it towards the top corner with the outside of his boot but the Wanderers stopper sprung across to palm it behind.
Joe Jacobson nearly came up with the goods from a free-kick 25-30 yards out. He curled it up and over the wall and down towards the bottom right corner and Ramsdale got down well to deny the full-back midway through the first period.
Chesterfield, playing with freedom, whipped in a dangerous ball a couple of minutes later which found Kristian Dennis, he nodded towards goal but Brown was equal to it.
36 minutes gone and it was another scare for the Chairboys. Bradley Barry crossed to Binnom-Williams and he headed over.
No more let-offs for Wycombe. They found themselves behind on 39 minutes as Harriman put it in his own net. In fairness there was little the right-back could do about it; Chesterfield broke down the right, drove in, a low shot from Barry cannoned back off the post, hit Harri and went in.
Wanderers attempted to respond immediately as some good pressing from Williams almost paid off as Ramsdale’s kick from a backpass hit the forward. It didn’t fall kindly to a Wycombe shirt however and the Spireites managed to scramble clear.
With two additional minutes raised, Wycombe were level though. O'Nien did wonderfully down the right hand side of the box; he drilled it low towards the near post and Tyson bundled it home to ensure it was all-square at the break.
Half-time: Chesterfield 1-1 Wycombe
The second-half was two minutes old when Wycombe went oh so close to going in front. Jacobson’s corner found Jombati whose header deflected inches wide.
52 minutes gone and a low cross from Jombati went through a host of bodies. Tyson and Ramsdale desperately stretched for the loose ball and the ‘keeper came out on top this time.
Up the other end and Binnom-Williams continued to be a threat in the air; this time heading narrowly wide from a Spireites corner.
Luke O’Nien received the first booking of the game for a late challenge in the middle of the park on the hour mark. Soon after that Dennis could only head wide from a cross out from the left.
Wycombe made their first change on 66 minutes as Paris Cowan-Hall came on in place of Williams. Soon after that the Chairboys missed a golden opportunity to take the lead as Mackail-Smith went through one-on-one from O’Nien’s through ball. The striker bore down on goal but took a heavy touch and with Ramsdale closing it trickled agonisingly wide.
Cowan-Hall was next to go close as Gareth Ainsworth’s men cranked up the pressure. Mackail-Smith gambled on Paris’ flick-on, played it back to the forward who curled it just past the post on 72 minutes.
Back again came the Chairboys; Mackail-Smith cutting in and laying it up for Tyson to strike over with just over 15 minutes of normal time remaining.
The pressure finally paid off and it was Gape who sparked wild celebrations in the away end. JJ's corner sparked panic, it broke to midfielder who put his boot through it and it flew into the net.
Chesterfield were certainly in no mood to just lie down however as substitute Jak McCourt's effort deflected, loops up, and bounced off the woodwork with ten to play.
Mackail-Smith was booked as the Chairboys tried to run down the clock, knowing full well at this point that a win would see them promoted.
Four minutes added on, four torturous minutes, but when that final whistle it sparked jubilant, emotional and most definitely unforgettable scenes. The Chairboys are on their way to League One!
Attendance: 5,679 (1,131 Wycombe)