St Pat's are 1-0 at half time thanks to Killian Brennan's 19th minute penalty.
Killian scored his first league goal for the Saints after Ian Bermingham was fouled in the box.
The Saints line out as follows:
Brendan Clarke; Jake Carroll, Kenny Browne, Ian Bermingham, Ger O'Brien; Chris Forrester, Conan Byrne, Killian Brennan, Shane McFaul, John Russell; Christy Fagan
Subs: Sean Gannon, Anthony Flood, Greg Bolger, Jordan Keegan, Conor Kenna, Conor Murphy, Dave Ryan
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