Ireland Under 17 Girls made it three wins on the bounce with a 15-run win to clinch the tri-series in Deventer with a game to spare.
The Clontarf duo of Genevieve Morrissey and Gemma Sargent (17*) played a starring role in the hard-fought encounter.
Morrissey top-scored with a better than even-time unbeaten 39 (3 fours) adding a vital 38 for the sixth wicket with Sargent in a total of 119 for 5 - two wickets apiece for Georgina Birkenshaw and Freya Wilcox.
Sargent then took two wickets as the Scots were restricted to 104 for 6 - wickets also for Anna Ellerby and Aisling Lawlor.
The teams meet again on Thursday morning with Ireland already assured of the trophy.