The low scores that seems to dominate nearly all wins also ensures the final result remains in doubt until late.

Goals though to start each of the quarters on the front foot eliminated that concern for coach Scott Gowans.

The Kangaroos never once conceded the lead and after a level end to the first term, sprinted away to defeat GWS Giants 6.1 (37) to 2.7(19) at UTAS Stadium.

"Once we put scoreboard pressure on their side and we got that two-three goal break, it's really difficult to catch up," Gowans said at the post-match conference.

"So we try and get a really good start to each quarter.

"Again it falls down to that scoreboard pressure.

"If you can do that and get a lead, it's a really good start."

The home side had kicked goals inside the first three and a half minutes after all breaks without fail.

All-Australian centre-half forward Jasmine Garner set the tone with back-to-back goals in the initial two terms.

She also had 19 touches in a starring role while captain Emma Kearney and Jenna Bruton topped the disposals with 20 each amid a series of brutal attacks on the ball.

That was one kind of pressure that the Roos asserted.

The other kind was that of the harassment on the Giants when they did have the ball.

Tackle after tackle, it just proved too much all day.

It told in the visitors' poor goalkicking, spraying most of their nine shots to seven that included one goal from a soft free and another off a 50m penalty to the goal-line.

It also showed from the resolve that Gowans' charges were not going to open their season with two losses.

"It's a relief to get on the board [with a win] and I think even more so the way we played," Gowans said.

"I just reckon our pressure was amazing and especially our ability to pressure them any time they got a run on with ball movement. It was pretty important for us."

The Kangaroos changed lanes in their ball carry that was not a part of their game a week earlier against Melbourne in a three-goal deadlock that the visitors to Casey Fields lost by two points.

Gowans conceded things were back to normal after a big week mixing it with fans and the club's AFL stars.

"I was pretty confident [of the win] - even from the team meeting we had on the Monday night," he said.

"We showed just one clip [of the loss] and just moved on.

"We felt that maybe our lead-up to last week was a little bit big.

"There were a lot of functions on and we did a few things that were a bit abnormal.

"That might have taken an edge off of it."