Laura Reid stormed back from a set down to book her place in the last 16 of the Irish Junior Championship at Fitzwilliam in Dublin yesterday.
The Windsor player, who is unseeded, looked to be in trouble when Robyn Johnston took the opening set 6-4 but she recovered superbly to progress on a 4-6 6-1 6-0 scoreline.
Lucy Octave, at seven the only Ulster girl seeded, was also in commanding form as she easily swept aside the challenge of Shauna Casey by 6-3 6-0.
It's been a good season for the Donaghadee player, who was crowned Ulster senior champion before climbing the world rankings with two wins at the ITF Junior tournament at Windsor.
Caitlin McCullough also progressed with a straight sets win over Seona O'Keefe but her sister Annie and Emily Beatty both lost.
In the corresponding boy's event, fifth seeded Ulster lad Sam Bothwell beat Cormac McCooey 6-3 6-1, Matthew McClurg and Ardghal McMahon also going through without the loss of a set but Alasdair Knox was dismissed.
Another Ulster player who is expected to reach the quarter-finals, Jessica Leeman, advanced to the second round of the U-14 event.
The seventh seeded Hawarden player overcame Caoimhoe O'Reilly 6-1 6-3 with an excellent display to earn a date with Eimear O'Neill.
O'Neill dismissed another member of the Ulster contingent, Mary Parkash, who was unable to set up an all-northern clash when she lost 6-3 6-2 to the Dublin girl.
In the U-14 boy's event, there were defeats for Caleb Ralston and Jordan McKeown.
Ralston lost 6-3 6-3 against top-ranked Robert Collins while McKeown went down 6-3 6-3 to fourth seed Jonathan Garcia.