Down 2-0 at the break after goals in the fifth and 29th minutes, Wanganui scored the only points of the second half with a field goal from Haley Mallinder shortly after the resumption.
Lowe said it was top effort as Canterbury had been racking up big scores against teams like Auckland and Counties Manukau.
"They probably had one or two [rested] but we played really, really well against them."
That result left Wanganui at the bottom of Pool A, so they met Pool B's third-placed New Zealand Defence Force (NZDF) team yesterday morning and shocked the servicewomen with three penalty corner goals in the space of five minutes to snatch a dramatic 3-2 win.
After conceding 17th and 60th minute goals to trail 2-0 after an hour, Wanganui benched their goalie to bring on an extra player and were instantly rewarded with Cathie Bunler connecting in the shooting circle.
They switched to having a goalie and immediately turned the ball over to get back on attack, with Bunler getting her double in the space of two minutes.
Just a further three minutes later and NZDF were trapped in their box again, with Mallinder making no mistake to give Wanganui something to show for their week's efforts.
The win means they will face Counties Manukau again this morning in the playoff for 7th/8th.