Clontarf overcame an early wobble to chase down a modest target of 64 to reach the All-Ireland Under 17 girls final.
Bonds Glen with the help of 40 extras had given their bowlers a slight chance after their batters were overwhelmed by the Castle Avenue bowling unit.
There were three wickets for Webster, and two apiece for Syam, Pasley and O'Toole.
Lucy Thompson struck first ball of the reply, and when Jessica Cooke took a hat-trick, Clontarf were up against it at 13 for 4.
However, Lucy Barry struck seven boundaries in an unbeaten 40 from 37 balls, adding an unbroken 51 in seven overs with Genevieve Morrissey (15*).
The final was scheduled to be against Lisburn at Woodvale on Sunday as part of a double-header with the U17 boys final between Merrion and CSNI - but both matches were called off and Cricket Ireland will confirm any possible rearrangements in the coming days.
Clontarf lifted the Under 15 girls trophy with a 39-run win over hosts Bready.
The visitors were in trouble at 55 for 5, but Sinead Thomson's unbeaten 51 got them over the 100, a they ended on 105 for 8.
Jodie Spence took 3 for 15, while there were two wickets also for Young.
Bready's chase was derailed by an Aoibheann Synnott hat-trick (4-11) and despite the best efforts of Millie Spence (26) they were bowled out for 66.