In the middle of January, Larne had just defeated Glentoran to move 10 points clear at the top of the table.
Now, in a twist that few saw coming, that lead is down to just two points.
While Gary Haveron's side lost their second game in a row, rivals Coleraine and Linfield took full advantage to close in on the leaders.
Larne are still favourites to win the title with a two-point lead and a game in hand, but their run of three games without a win has opened the door for late-season drama.
Plus, given the contenders still have to play each other in the split, their position at the top is far more precarious that it once was.
Former Crusaders defender Colin Coates said that "Irish League football is never dull" and Larne's defeat was a "huge result" for the chasing pack.
When asked if he thought that there would be a title race when Larne looked like they would breeze to the title, he said "probably not, no".
"Larne looked so assured for such a long period of the season. Every team will have a blip or run of form.
"This might be Larne's, so it's all about how long it lasts and the chasing teams will hope it lasts for another few weeks.
"That will allow them to really put the squeeze on heading into the split."
After Tuesday night's big win over Dungannon Swifts, Healy said that retaining the Gibson Cup was "unlikely, but not impossible".
Now, after Larne's defeat on Friday and Linfield's derby win over Glentoran, the odds are now more in their favour than they were a week ago.
Despite a shock Irish Cup exit at the hands of Championship front runners Limavady United, the Blues are now nine games unbeaten in the league and are hitting form at the sharp end of the season.
But Linfield midfielder Kyle McClean said "there is no talks of leagues" and "absolutely no pressure on us at the minute".
"From the turn of the year, we know we have been in good form in the league and we knew we were on a good run," he continued.
"We knew that we needed to be better from the first half of the season and we are taking it game by game. There is absolutely no pressure on us at the minute.
"We are just going about our business and trying to win games and trying to get up the table.
"Thankfully in recent weeks we have done that and certainly in that dressing room we are just wanting to win game by game and see where we end up in the league."
Linfield may be playing things down, but Healy's reaction at full-time, where he clenched his fists at the crowd, was the celebration of a man who knows the dream of a record-extending 57th Gibson Cup is still well and truly alive after a big win over their rivals.
Where has Larne's wobble come from?
A lot of Larne's troubles have come from a defence that had been so solid, yet has now started to leak goals.
By the end of January, the Inver Park side had conceded just 13 goals in 26 matches. It had been the bedrock of their title campaign.
But in three league matches in February, they are without a win and have conceded seven goals in three games, with one point to show for their troubles as a draw with Glentoran was followed by losses to Portadown and Carrick Rangers.
Speaking after the derby loss to Carrick, Haveron's frustration was evident as he challenged his players to bounce back against Linfield on Tuesday.
That game was always going to be important, but given the momentum of both sides it feels like a pivotal moment in the title race.
"The last couple of results are from from ideal and we've let the others back into the mix," Haveron said.
"That's on us and it's now how we react from this moment on.
"I'm sure I'll get a reaction from the players in the right way."
After failing to properly convert Larne's slip-up against Portadown with their own 1-1 draw with in-form Carrick, Coleraine's win over Ballymena on Friday brought them to within touching distance of the top.
That gap now stands at two points, although Larne and Linfield have a game in hand over the Bannsiders.
Speaking before Friday's fixtures, manager Ruaidhri Higgins had said that Coleraine were taking it one game at a time and "it's Larne to lose really with games running out".
With a big three points in the bag, Higgins said he had heard "whispers" about the Larne score during the game but the focus was solely on his side.
"We have a job to do. If we don't do our job then it is irrelevant.
"There are so many points to play for. I'm delighted we were able to get the three points over the line."
In fourth place, and with a two games in hand over Larne, Glentoran cannot be ruled out of contention for the title if the top three keep tripping up.
The defeat by Linfield was damaging to their hopes, but there is still a chance for a first title since 2009.
If they are to capitalise from this point, Declan Devine's side must be as close to perfect until the split, and then beat their rivals in the five-game sprint to the finish line.
They are definitely the outsiders, but given how much things have changed since the turn of the year, they cannot be ruled out.
It may not have been obvious one month ago, but the four-way title race is shaping up to be one of the most intriguing in years.