REBECCA Pritchard's stunning flicked effort in the second half sealed Wrexham's promotion to the Adran Premier League.
The decisive goal was down to the perseverance of Rosie Hughes, who crossed from the left, and Pritchard nipped in just ahead of Briton Ferry Llansawel keeper Courtney Young.
While Hughes and Pritchard will take their plaudits, keeper Delyth Morgan and defender Erin Lovett were the stand-out performers as the Reds gained promotion after an epic play-off with Cymru South winners Briton Ferry Llansawel at Newtown.
Briton Ferry Llansawel enjoyed a bright opening, but Wrexham showed the threat they possessed on five minutes.
Lili Jones sprayed the ball wide for Rebecca Pritchard and her early cross was just in front of Rosie Hughes.
Briton Ferry had shouts for a penalty for Phoebe Davies' challenge on Laura-May Walkley in the eighth minute, but nothing was given.
Wrexham struggled to settle during the initial stages and Briton Ferry were having the bulk of the ball.
On a quarter-of-an-hour, the Reds had shouts of their own for a penalty for a challenge on Rosie Hughes. Again, it wasn't awarded.
There was almost a Briton Ferry opener on 21 minutes as Walkley kept hold of the ball under pressure and her strike from the edge of the box was just wide.
Megan Kearle was sent clean through for the Cymru South champions, but she was denied by Delyth Morgan, while Chelsea Deacon's follow-up went over the bar.
Mari Gibbard was played through at the other end, but brave goalkeeping by Courtney Young stopped the danger.
Young was injured during the incident and had to receive treatment.
Megan Kearle had an opportunity for Briton Ferry, while there was a glorious chance for the Reds.
Lili Jones sent Hughes in the clear, but she was denied by Young.
Brilliant play by Hughes saw her get beyond two challenges and she crossed for Gibbard, whose shot was blocked.
Two minutes from half-time and Kearle played in Lowri Baker, but her strike went straight at Morgan.
Wrexham struggled to get the dangerous Hughes into the contest when the second half got underway.
Briton Ferry Llansawel were on the front foot after the restart and the match was being played in Wrexham's half.
The dangerous Walkley crossed into the box to Baker, but she blazed over from the penalty spot.
Walkley threatened again when a free kick wasn't cleared and her strike was superbly cleared off the line by Mia Roberts.
Hughes did get some good service at the other end and she did brilliantly to win a corner, however a foul on keeper Young saw a free kick awarded.
Erin Lovett was outstanding at the back for the Reds and she closed down a dangerous attack, by nipping in before Baker.
Entering the final 20 minutes, sub Mollie Jones raced in on the left and she forced a decent stop by Morgan.
On 74 minutes, Wrexham took the lead.
Rosie Hughes' never-say-die attitude saw her beat two challenges and get to the ball just before it ran out of play.
Her cross saw Pritchard run to the near post to flick in a superb goal.
Wrexham made their first changes on 77 minutes with Ella Clifton Stringer replacing Mia Roberts, while Lily Whitefoot came on for Lightfoot.
Walkley crossed for Mollie Jones and her shot was on target, but it was Lovett who took the sting out of it and Morgan saved.
On a rare attack for the Reds, Hughes picked out Whitefoot, but her effort went wide.
Five minutes from time and Gibbard was replaced by Libby Mackenzie.
Megan Kearle received a yellow card after raising her hands towards Lovett in the closing minutes.
Hughes almost sealed it for the Reds in the 88th minute, but her effort from 30 yards hammered against the crossbar.
Then, seconds later, Mollie Jones was played clean through by Kearle but what a save by Delyth Morgan to keep the Reds in front.
A scramble from a corner did cause issues in the Wrexham box, but the danger was cleared.
Inexplicably, Walkley was called back for a free kick to be awarded to Briton Ferry.
The set piece from the edge of the box hit the bar from Lucy Powell, which was tipped against the woodwork by Morgan, and the follow-up was cleared off the line.
The final whistle heralded scenes of celebration from the Wrexham players and they can now look forward to top flight football.
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