Second-placed Crusaders remain three points behind long-time leaders Linfield after an emphatic home win over Lisburn Distillery.
Gareth McKeown rifled in the opener in the third minute and Michael Halliday quickly added another with a cool finish past keeper Billy Brennan.
Stuart Dallas scored with a stunning 22-yard shot in the 56th minute before Jordan Owens blasted in the fourth.
Jordan Hughes netted a late goal for a well beaten Lisburn Distillery.
"We did a professional job and scored some great goals," said striker Halliday.
"This season has given us the belief that we are a good enough team to win a league championship.
"Mathematically, we may still be in contention but realistically it is Linfield's title.
"We need to keep this squad together and give it a real go next year. I think we are as good as anyone in the league.
"It has been a big learning curve for some of our young players."