UCD 2 Dundalk 1
Brothers Robbie and John Martin kept it in the family as they both scored as UCD leapfrogged Dundalk up to seventh place in the table.
Robbie put College deservedly in front on 19 minutes.
John added the second from Robbie's cross five minutes after the break.
Dundalk, poor throughout the game, got their consolation goal a minute from time when substitute Chris Lawless turned home a David Crawley cross.