Clontarf 8 UCD 14, Castle Avenue
Division One leaders Clontarf slipped to their second successive league defeat as UCD hit them with an injury-time try at Castle Avenue.
UCD's hard-working forward unit won the day for them as they conjured up a last-gasp score for flanker Kevin Croke, which Leinster squad member Fergus McFadden converted.
Another of the students' Leinster-capped players, Kevin McLaughlin, breached the 'Tarf line in the opening half to put the visitors 7-0 ahead at half-time.
Clontarf tried to move the ball wide more often than not. They were rewarded with a try from winger Phil Howard and captain Daragh O'Shea chipped in with a penalty but UCD, who also won before Christmas at Terenure, had the final say.