Saturday's 42-24 win at Princess Park lifted the Swans to 13 wins, while Rochester remains three wins behind in fifth position.
Having been seven goals up at the main break, the Swans went on to score another 20 goals in the second half, while keeping Rochester to nine.
Anerley West was influential for the home side, alongside Sophie Kamenjarin and Lauren McMahon.
Rochester's Tazarni Clarke and Eliza Williams tried their hardest for the away side.
In other games, Seymour defeated a brave Shepparton line-up at Kings Park, 41-36.
The Lions held off the fast-finishing Bears to hang onto fourth position on the ladder.
The Bears remain locked in sixth spot.
Seymour's Bridie Cantwell showed off her classy skills on the court, while Rani Curry and Chloe Locke chipped in with terrific performances.
For the Bears, Olivia Archer was a standout, alongside handy performers Elly Jeffrey and Abbey Rumbiolo.
Meanwhile, Tatura kept its faint finals hopes alive with a gutsy 46-35 win against Mooroopna at Tatura Park.
The Bulldogs' fast-start - scoring 15-10 in the first term - was orchestrated by Bec Valentin and Emily Wilson.
Lucy Somers was put in a fine effort to help secure the 11-goal win for the Bulldogs.
Jazz Clark and Ava Moore played their hearts out for the Cats.
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