Ali Forsyth and John Jermyn exchanged goals to leave the game balanced at 1-1. The Scottish side enjoyed a large portion of possession but found the CI defence resolute.
But Kelburne eventually broke the deadlock in the fourth quarter when Gordon McIntyre played through the middle to Forsyth. His first time reverse chipped over the guesting Stephen O'Keeffe for the win.
In the day's second game, Three Rock found YM's defence holding up well under pressure for long periods until Peter McConnell broke the deadlock in the third quarter to open the floodgates. Andy McConnell added a second before Tim Hill completed the scoring.
It leaves Kelburne three points clear of Rovers and CI with six points going into their final match with the hosts. A win for Three Rock will see the tournament decided on goal difference, though the Scottish side is still in the box seat after their large win on Friday.
In the women's three-team competition, Old Alex and Ards are dead level having both beaten TRL 3-0 and drawn their meeting today, 1-1.