The Kangaroos have been the AFL South Coast men's premier division's dominant side after three rounds, winning each game by more than 80 points.

Figtree proved far too strong for Northern Districts on Saturday recording a 21.21 (147) to 3.3 (21) victory at Figtree Oval.

Winning the 2019 title had been part of coach Will Ryan's five-year plan after he took over the reins. The Roos came agonisingly close, falling by 16 points to the Lions on grand final day.

Ryan said that defeat had "added fuel to the fire" for Figtree's ambitions.

"When I took over the coaching five years ago, we said that in the next three to five years ago we want to win a flag. And the playing group really came together under that idea," Ryan said.

"We thought we did really well last year and we certainly earned our spot in the grand final. We were certainly disappointed with the way played, we didn't play our brand of football or the football that got us there in the first place. And unfortunately it was the one game you just don't want to lose.

"It's definitely fuel for the guys who have played under me for the last five years. But I think there's a bunch of new guys this year who are buying into it. And we've got the old firm who just want to win a flag before they retire. What happened last year is certainly providing motivation and, I think too, having the three months off before this season started only threw fuel on the fire because everyone was antsy about getting out there and playing."

It was a see-sawing battle early on Saturday, with the Kangaroos holding a 17-point lead at quarter time. However, the home side asserted their dominance in the second, booting seven goals to one, to lead by 56 points at the main break.

Figtree pulled further away in the third quarter, kicking six goals to one, before rounding out the 126-point win with five goals in the last.

Ryan said it was an all-round pleasing victory.

"We've always struggled to score over 100 points at Figtree and it's been pleasing to consistently do that over the last three weeks. If we had kicked a bit straighter too, we would have scored a few more [goals] too," he said.

"I think keeping the other teams to low scores too is testament to just how hard the backline works. Even if you win by 100 points, the backline is still doing a mountain of work to make sure the opposition isn't registering a point which is good."

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Elsewhere, the Wollongong Bulldogs made it back-to-back wins with a 72-point victory over Bomaderry. Patrick Walker booted six goals for the winners.

Kiama proved too strong for Shellharbour City with a 14.13 (97) to 2.6 (18) win.