Strong North-West sides accounted for their NTCA counterparts in both upper corners of the state on Tuesday.
An 81-ball 101 from Ethan Clark proved the difference in the under-16 representative clash at Latrobe where the hosts won by seven wickets with more than 12 of their 50 overs to spare.
Arriving at the crease in the third over after South Launceston's Charles Skipper (1-17 off six) struck early, Clark breezed into the 90s by taking 22 off a Kaidyn Apted over.
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He raised his bat three overs later before the Riverside junior got his man.
Knight James Leake (1-34 off nine) was the other Northern bowler to take a wicket as George Davies (27*) ended the game with a maximum.
Earlier, Alex Tubb's 55 was the anchoring knock in the NTCA's 8-181.
The Riverside all-rounder put on 66 with keeper Archie Edwards while Tom Hawkins (23) and William Barns (26 not out) also posted handy scores.
The North was also overpowered in a 71-run loss in the under-14 clash at the NTCA No.2.
A 78-run stand between Tyler Gleeson (51) and Roland Skirving (27) was the backbone of Cricket North-West's 9-166 off 40 overs as Quinn Elliott, Ethan Arnott and William French took two wickets apiece for the hosts.
The NTCA then used all 12 batsmen in compiling 10-95 with not-out pair Harry Page (20) and Jensen Smith (25) the pick of the lot.
Jonas Best also made 20 before being run out as Gleeson capped off an all-round performance with 3-15 off six overs.
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