The Catholic College Bendigo year nine students will line up together for Victoria at the School Sport Australia national 15-and-under netball championships in July.

They are among 12 girls chosen to represent Team Vic at the week-long carnival in Melbourne, after impressing selectors with their on-court skills and off-court dedication.

Williams rules the mid-court for Sandhurst's 17-and-under side in the Bendigo Football Netball League, while Sexton affects countless intercepts for the Dragons in defence.

The 15-year-olds have experienced many successes together for their CCB team, which has triumphed at School Sport Victoria and Netball Victoria state titles in recent years.

Williams, who won a national championship as a 12-year-old with Team Vic's primary school netball squad, said she was looking forward to having Sexton by her side.

"We look for each other out on the court, so it's going to be so much fun doing this with her," she said.

Sexton, who is making her state netball debut, hopes the experience will help improve her game.

CCB teacher and netball coach Nicole Mazzarella said the pair were amazing athletes and wonderful role models.

"They are excellent ambassadors for our school," she said.

"They both play really clean netball, their level of sportsmanship is exemplary and they show great commitment and leadership."

The SSA national 15-and-under netball championships will be held from July 19-25.