Orange Hawks will do battle with Orange CYMS league tag local derby on Sunday

That's the goal for Caitlin, Hailey and Bec Prestwidge in 2020 ahead of the looming Group 10 under 18s league tag finals.

The Hawks sisters are looking to cap off an undefeated regular season with a resounding win over cross-town rivals CYMS on Sunday, a victory that would be another major step towards a third consecutive league tag title for the two blues under 18s girls.

But the Prestwidges know a victory against such a strong CYMS outfit - the green and golds sit in second place on the ladder heading into Sunday's final round derby - won't be easy.

There cheering them on, though, will be proud Dad, Glen.

Sunday's derby will be on Father's Day, and the girls' dad, along with mum Michelle, is their biggest supporter.

"He always watches us play ... he'll be there cheering us," Caitlin said.

The two blues produced a shut-out win in the season's first derby but know they need to replicate those efforts - and then some - if they want to enter the finals series unblemished.

And there'll be a stack of familiar faces lining up opposite them on Sunday.

Several CYMS' girls play touch with the triplets in the summer, which makes the contest even more exciting for the trio.

"We know all these girls really well," Hailey said.

"For us it's just a bit of fun but we're also really competitive when we get out there and we want to win.

"The thing they do best is defence ... they're always diving for tags and always running the ball so it's going to be tough."

But the Prestwidge trio, as it has done all year, will be one of the keys for Hawks as they look to pierce through the rock-solid CYMS defence.

Whether it be Bec at halfback, Caitlin at hooker or Hailey through the middle, the sisters work as one.

That's one of the benefits of playing on the same paddock all the time. The chemistry is there.

Being triplets, that relationship the sisters boast is as strong as any and they highlighted that as a major advantage they've got over their adversaries on game day.

"We have that sister-bond," Bec said. "We all have our strengths and weaknesses but we all know where we're going to be and what each other is doing.

"Sometimes we do moves on the field and we all know what the other one is doing and we'll just pop up near each other."

It's common knowledge around the rugby league traps all three sisters are talented in their own way but when asked who the best sister is the response was unanimous.

"Bec," Hailey and Caitlin said in unison, before reflecting on the team as a whole.

"We all just put in at training and we're a big group that's all really close," Caitlin said. "We're like a big family and we all do our jobs really well."

Sunday's derby kicks off at 10am at Brendon Sturgeon Oval.