The Dubbo side won again at Orange on Wednesday to move through to the under 15s grand final undefeated.

The efforts follow on from those of the under 13s side last week, which finished as runners-up at Orange.

The Dubbo side was made to work for Wednesday's win against a Blacktown outfit which had also won both of its first two games.

Dubbo managed to defend a small total of 150 as their bowlers fired, dismissing Blacktown for 130 in the 34th over as Ted Murray took three wickets while Lachie Rummans and Angus Rose took two apiece and openers Noah Brien and Jai Reeves each snagged one.

Hugh Sienkiewicz had earlier been the lone batsmen to fire, hitting an unbeaten 56 after coming in with the score at 5-64 following the efforts of Armaan Singh (3-23), who knocked over the top order.

Tushar Sharma tried to will his side over the line with 40 not out in Blacktown's chase but he ran out of support.

While Dubbo won again, the standout performance of the day on Wednesday belonged to Mitchell's Hugh Thompson.

Thompson was simply unstoppable as his side downed Wagga Wagga.

Thompson dismissed the entire top six in his eight overs across two spells - leaving Wagga 3/0 at one point - before returning to rattle the stumps of number 11 Jack McCartan for wicket number seven.

Thompson finished with 7/25 as Wagga was knocked over for 102.

Blake Kreuzberger backed up his second-day century with 42 off 37 to top-score in what was a simple chase as Mitchell won the match by six wickets.

Elsewhere on Wednesday, Mosman scored a dominant nine-wicket win over St Johns of India, New Zealand's Wakatipu HS downed Penrith, and Northern District defeated South Eastern.