Blacktown have often given intimations of the force they can be in Sydney first grade cricket but there were more than hints at Sydney University No.1 Oval on Saturday.

The Warriors delivered, devastating the defending premiers' batting.

The Blacktown bowlers mastered the Students from the start, having them 5-32 and then 8-46 early in Uni's innings.

University ended the severe examination when they were dismissed for 108.

Blacktown batted again and were 1-54 at stumps, but that was academic.

The Warriors have seldom had trouble scoring runs, their problem had been dismissing teams which had been exemplified in the four rounds before Saturday.

Not this time, and helpful wicket or no helpful wicket, this was more than an important win.

It was important for the bowlers' self-belief.

Sydney Uni lost their first wicket at six and Kish Nadeshan was the man who did all the damage.

The leading wicket-taker from last season's pennant cricket and off-season recruit took 4-24 with his pacy swingers.

Michael Bright assisted with 2-17 and young leg-spinner Kurt Roughley converted potential into performance with 2-28.

Seconds reaching 269 in reply to Uni's mountainous 8-384.

Opener Nick Carruthers' 97 was the highlight.

Thirds fared the same, being dismissed for 161, chasing 216.

Mitchell Watterson, 86, was the best.

Fourths succumbed for 106 in reply to 8-262.

Fifths made 133 chasing 5-309.

Blacktown did have a win in the Metropolitan Cup, however.

They dismissed Wests for just 82 in reply to their 170.

The Warriors firsts will host North Sydney at Joe McAleer Reserve this Saturday.

Meanwhile, Blacktown will have a gala day when they play Penrith in firsts and Poidevin-Gray Shield in Twenty20 games at Joe McAleer Reserve on November 22.