Newcastle C&S mastered the tricky batting conditions better at Lorn Park to claim their fourth John Bull Shield title.
Despite scoring just 96, Newcastle were able to record a 25-run win.
Newcastle's Paul Gauci was voted man of the match by the umpires for his innings of 37, which included four boundaries and a six.
Only captain Steven Grisham with 14 and all-rounder Simon Smith with 10 were also able to reach double figures for the visitors who were all out for 96 in 31.2 overs.
Maitland's young team had every right of claiming the team's third title in a row after their fine bowling performance in which Trent Park picked up 3-8 off five overs, Alex Seamer took 2-13 off seven, Cam Wynn 2-9 off six. Brayden Brooks finished with 2-41.
Newcastle were able to keep the pressure on the Maitland run chase by taking regular wickets and restricting runs.
Scoring was slow with boundaries hard to come by on a slow outfield.
Only Trent Park with 13 and Cam Wynn 11 not out were able to reach double figures. Alex Lidbury made an entertaining nine including a huge straight six.
"It proves again that you can't judge a wicket until both sides have batted on it," Maitland skipper Ricky Dent said.
"Our boys bowled very well, but Newcastle bowled even better."
Grisham finished with 4-24 and Simon Smith and Quinn Waters got two each.