Western cricket 15 years girls just powered through the NSW Country Youth Championships undefeated, and taking up bat and ball were Forbes' Holly Maslin and Trundle's Vashti Williams.

Western zone girls are champions for the second year in a row after the six-round competition of T20 games, played in Singleton in October.

They opened their campaign against North Coast and amassed 139 off their overs with the loss of just four wickets, before restraining North Coast to 7/74.

Holly bowled 1/8 off her two overs, and Vashti restrained the batsmen to just one run off her two overs.

Western headed out to bat first in Round 2 against Northern Inland Bolters, Vashti scoring 22 as the girls amassed 5/121 for their overs.

They won by 22 runs.

Round 3 was a low-scoring game, with Riverina out for 37. Vashti was one of the wicket takers with figures of 1/5 off three overs.

Holly opened the batting for Western, scoring 14 of their required 38 runs.

Western dominated again in Round 4, this time against Greater Illawarra, who they bowled out for 79. Western lost no wickets in amassing the total.

In Round 5, Holly took 1/8 in two overs as Western restrained Hunter Valley to 57 runs, a total the Western girls then achieved with six wickets in hand.

The Forbes spin bowler featured again in her side's final win, claiming 2/7 off three as Western bundled Lake Macquarie Out for 89.

Vashti opened the batting and made 6 runs, the side making the required runs with eight wickets in hand.