After some one-sided defeats early in the season, the Phoenix had improved to twice lead 2-1 at halftime in the past month, only to lose 3-2.
Again, the Nix were up at the break after Knott blasted past 17-year-old debutant Chloe Lincoln in the Canberra goal. The ball fell to Knott charging into the area after nifty footwork in the build-up from Alyssa Whinham.
And this time, they built on that lead. A fantastic ball from Knott split the Canberra defence and allowed Jale to run in behind and tuck a well-placed left-foot shot inside the far post in the 50th minute.
The decisive third arrived in the 62nd minute, when Talitha Kramer crossed from the left and Ava Pritchard's off-target shot was deflected in by Canberra defender Ally Haran.
The hosts pressed hard to get back in the match, but this time, the Nix would not be denied a historic win.