Charli Orsini played a pivotal role in NSW's run to the semi-finals in Canberra after being almost unhittable against the best junior players in the country.

Orsini has been playing since she was six years old, but was just as surprised as everyone when she was able to generate so much pace on the ball.

To put Orsini's talent in perspective, the average pace of pitchers in the highly-regarded United States college system for 18-21-year-olds is between 108 and 110 kilometres per hour.

"To be honest I have no clue how I get it that fast, I'm pretty short, so its kind of funny that I'm so short and it comes out like that but I do train a lot to get the pace that I do."

Orsini was one of the the youngest players at the tournament in Canberra, which finished on Saturday when NSW won against Queensland 5-2 in the final.

"I was a little bit [nervous] to begin with, just because everyone is a little bit older than me, but once I started playing and I get in the groove of everything I'm fine," Orsini said. NSW team manager Leanne Solomons said Orsini had the potential to go far with her softball talent.

"The last two girls that have stood out as much as Charli, are actually pitching over in America for American college's at the moment and are making all American teams. So Charli has some good vintage in-front of her," Solomons said.

Orsini has aspirations to follow in the footsteps of Gabbie Plain and play college softball in America.

"I would definitely love the opportunity to go over and play softball in America."