Finn Harps missed the opportunity to increase their slender lead at the top of the SSE Airtricity League First Division on Sunday evening losing 1-0 to UCD in Dublin.
The goal which sorted the tie came on 64 minutes as Captain Robbie Benson drove home after running onto a low hard cross from Mark Langtry.
Just minutes before the goal, Harps had a good call for a penalty but the referee controversially booked Raymond Foy for diving.
Andrew Mullaly had a busy night with the book dishing out ten yellow cards, eight to Harps, two of which seen Thomas McMonagle sent to the line with three minutes to go.
The defeat was Harps second lose on the road this season but they remain one point ahead of Wexford Youths at the top.