The reigning champions were too strong for Conleths.
There were three games in the third round of the Laois Senior Ladies Football Championship last weekend.
In a repeat of last year's decider, Portlaoise once again got the better of St Conleths with a 2-16 to 2-07 victory.
Park Ratheniska had a 4-11 to 2-07 win over St Brigids.
Meanwhile, Sarsfield made it three wins from three with a thumping 7-10 to 1-07 win over Ballyroan on Sunday evening.