Ailbhe Marsh's goal proved the vital moment for Leinster's U16s as they won back the title for the first time since 2005, producing a brilliant second day in the process at last weekend's Interprovincial championships in Stormont.
Mount Anville's Marsh was also on target twice in the opening game of the day against Connacht in a 7-0 rout which, along with Ulster's 6-0 dismissal of the South East, set up a winner-takes-all tie between the two provinces in the penultimate game of the competition.
Indeed, having both drawn with Munster on day one, there was precious little between both sides going into the tie, with both starting with the same goal difference, although Leinster had the slight edge on goals scored. In a tight battle, Marsh's goal proved to be the only goal that Ulster would concede over the entire weekend.
The Red Hands had emerged from day one as the tournament's leaders, and remained on course to hold on to both U16 and U18 titles for a fourth successive year.
Anna Roopnarinesingh's (pictured) four goals had helped the Blues secure a draw against Munster (2-2) and an impressive 7-1 win over the South East to be in good shape. But Ulster were a goal better off as Zoe Wilson's four saw them head off Connacht 7-0. They also drew with Munster, who were hoping to profit from an unbeaten first day. They faded from contention on day two, leaving Ulster and Leinster to contest the major honours.
At U18 level, the title decider also came down to a Leinster-Ulster battle, this time in the final game of the competition, with Kate Dillon's side needing three points to grab the trophy.
However, this is a fine Ulster side which enjoyed top level success at the recent British school's championships and they ran out 3-0 winners on Sunday.
Youth Olympian Katie Mullan was on the mark for the eighth time in the tournament.
Defensively superb, they kept a clean sheet from their four games while notching 18 at the far end in a dominant showing.
Leinster secured second by virtue of their earlier 2-0 win over Connacht, with Emma Russell and Kate Lloyd both on the mark.