Top-seeded Ulster players Peter Corrie and Jordan McKeown are through to the second round of the Irish Junior Open after opening with impressive wins at the Under-18 event in Dublin.
Title favourite Corrie got his campaign under way with a 6-1 6-2 victory over qualifier Oisin O'Hanlon, while second-ranked McKeown defeated Ulster rival Anton Robb 6-2 6-2.
Those wins apart, it was a disappointing day for locals in the same age group, with four losses leaving the top two seeds carrying Ulster hopes in the last 16.
Lurgan teenager Caleb Rolston, who was seeded eight, lost 7-5 6-1 to Conor Johnston in a repeat of last year's U16 final.
Ben McClurg, Kyran Maguire and Will Millar also made early exits in straight sets.
In the girls' category, Bangor girl Megan Chambers defeated local rival Chrissie Bahrani 6-3 6-4 to set up a meeting with Hawarden player Jessica Leeman, the third seed, who had received a bye into the last 16.