Warrenpoint Town fought back from goal down to beat last season's other promoted team Ards 2-1 in Friday's Premiership game at Dixon Park.
William Faulkner put Ards ahead on 33 minutes but late goals from Daniel Hughes and Ruairi Devlin secured Warrenpoint's win.
Warrenpoint are playing in their inaugural Premiership season even though the players do not receive wages.
"There is more to a club than just paying the first team. Our club has got the right balance," said Warrenpoint player John Boyle.