The 29-year-old, who also officiated four matches at the Women's World Cup in England earlier this year, said becoming an cricket umpire had been something she was just determined to do, despite having no experience playing the game.
"I never played cricket, which is a little bit interesting for some people," she told reporters in Sydney on Wednesday, before adding she had been encouraged into it by her parents.
"I always followed cricket, my parents got me into it and Dad would drive me up from Goulburn to do the umpires course.
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"It took a few times to pass but it was something I was determined to do and I kept working through the grades in the Sydney competition."
Polosak has been on the Cricket Australia's development umpire panel for the past two years and has previously been a third-umpire in men's domestic cricket.
Despite the expected rise in standard this weekend, Polosak said her preparations would not change for the occasion.
"There's preparation, there's playing conditions, learning the players, having a meeting with your teammate... discuss what signals you're going to be using, how you're going to communicate," Polosak added.
"Physically, it's very similar stuff to a player, fitness, core strength, back and legs because you're standing up on the field for seven hours.
"I've got mental triggers so I'm able to watch every ball as you go, so you can settle into that."
(Reporting by Hardik Vyas in Bengaluru)
