The nine-year-old reached the finals of the girls under-12 singles event at the Tennis Coaches Australia-Victorian Championships, one of the biggest tennis events on the Optus Junior Tours.

More than 500 players competed across six venues in Melbourne, ending with the finals at Glen Iris Valley Recreation Club.

Tennis Victoria's talent development manager Ashley Naumann said it was an outstanding achievement for a young girl.

"This result marks Aiava's fourth finals appearance this year in OJT events, including a victory at the Frankston Junior Masters in April.

"Aiava fought valiantly in the final, but went down to Noelleda Ah San, of Endeavour Hills with a score of 7-6(9), 6-0."

Ms Naumann said the young tennis player was a rising star. "She has great work ethic and attitude. As a member of Tennis Victoria's Talent Development Program. It's great to see her doing so well."

Ms Naumann said the TCA-V Age Championships event provided strong, competitive match-play for the top Victorian juniors and regularly attracted the top-ranked players from around the country.

Destanee, who only started playing tournament tennis in December, has already won a string of matches.

Besides winning the Junior Masters girls under-12 singles in Frankston, she won the Diadora Tennis Classic in Boroondara in the junior girls doubles.

Destanee said she found the aggressiveness of the game and the other players the most challenging part of playing tennis.

"Just learning to have a good attitude on the court is hard. It seems the players who get heated, who fight, make better players."

Her favourite tennis players are the Williams sisters.

With her father as her 'conditioning coach', Lisa D'amelio of Noble Park as her main coach, and her mother as her 'recovery coach', Destanee has a great support team.

"I train six days a week for two to three hours a day and attend the High Performance Academy at Melbourne Park twice a week."

Her aim is to win an Australian scholarship to play internationally.

"In December I'll play in my first national tournament at Melbourne Park. Next year I'll be playing in the under-14s, so hopefully I'll progress to that."