Corry seals it for UCD
UCD punished some uncharacteristic mistakes by Dundalk to run out convincing winners at the Belfield Bowl and move to within five points of the summit with a game in hand.
Two goals in the space of two minutes stunned Ian Foster's side, who were without injured skipper Liam Burns.
In the 14th minute, Garry Breen was forced into giving away a corner by Ciaran Kilduff and, from Chris Mulhall's delivery, David McMillan rose to power a free header past Peter Cherrie.
Worse was to follow for the Lilywhites two minutes later as Greg Bolger carried the ball unchallenged for almost 50 yards before slipping a pass through for Kilduff, who finished with aplomb.
Fahrudin Kuduzovic pulled Dundalk back into the game with a great solo effort seven minutes before the break.
However, Paul Corry finished off a swift counter-attack in first-half stoppage time to seal the win.
UCD -- Brennan; Harding, E McMillan, Shortall, Nangle; Ward, Bolger, Corry; Mulhall, Kilduff (Rusk 85), D McMillan (McCreevy 65).
DUNDALK -- Cherrie; Kelly, G Breen, Hatswell, Murphy (McGuigan 56); Miller, Maher; Kuduzovic, Melligan, McGowan (Cawley 63); Fenn.
REF -- N Doyle (Dublin).