They have their home opener this weekend.
Portlaoise Panthers began life under Mick Thompson with a defeat against Limerick Sport Eagles on Saturday evening.
A new look Panthers outfit fell to a 15-point loss, having led by two at the interval.
Australian import Nelson Larmins dropped 12-points but was outscored by team-mate Gary Morrissey who scored 15-points.
Ian Lynch was next on the box score with nine.
Having slipped to 0-1, Thompson will now be eyeing up a first win in their home opener against Carlow on Friday night.
Saturday Score:
Limerick Sport Eagles 77 - 62 Portlaoise Panthers
Next Fixture:
Portlaoise Panthers v IT Carlow Basketball - Friday 8pm
Meanwhile it was also defeat for Portlaoise Panthers in the women's section, albeit by a smaller margin.
Just three points separated them from Limerick Sport Huskies after a tense battle on Saturday evening.
Antigone Sanabria top-scored with 25-points followed by Sarah Fleming on 14 and Jasmine Burke chipped in with 12.
They too will taste home court advantage for the first time in almost two years next weekend when they welcome the other Treaty team in their division, Limerick Celtics to Portlaoise on Saturday evening.
Week 1 Result:
Limerick Sport Huskies 79-76 Portlaoise Panthers
Next Fixture:
Portlaoise Panthers v Limerick Celtics - Saturday 7pm
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