Pitted against rival Shepparton Lawn Green in a first versus second skirmish, Blue was slow out of the blocks as Zach Ranson executed the perfect start earning 12 games for Green in the opening three rubbers alongside teammate Emily Schreck.
However, Blue soon found its stride, rallying back to winning ways through Adi Bhattacharya, Aston Monteleone, Will Clurey and Thomas Ranson, who all went undefeated throughout the day.
Meanwhile, Kialla Park Gold completed a stunning eight-game win against Shepparton Lawn Red to finalise a place in the semi-final facing Shepparton Lawn Green.
An early 6-2 scalp from Kian Roche and Shaun Morris set the tone for Gold, with both picking up crucial games in set defeats later on in the day's play to help steer their side home.
And elsewhere in the top-flight, Mooroopna Cats White took home bragging rights against counterpart Blue following a nine-game triumph.
B1 titans Toolamba proved its worth against Shepparton Lawn Red, dismantling it 6-43 to 2-30, while second-ranked Mooroopna Cats picked apart Shepparton Lawn Green by 25 games.
Other Shepparton Lawn outfits failed to fare much better, with Yellow and Blue succumbing to defeat against Nathalia Lawn and Kialla Park respectively.
The final round of B2 play had McEwen Reserve overpower Mooroopna Cats White by 36 games, Kialla Park edged out Tatura Lawn and Mooroopna Cats Blue got across the line against Shepparton Lawn.
● Knockout action will ensue this weekend at Shepparton Lawn, with semi-finals set to be played on Saturday, before all eyes turn to the grand finals on Sunday.