Robin Montgomery may not come off as the most intimidating foe for opponents, but at the Oracle Pro Series – Las Vegas this week, the 15-year-old is dominating the competition. In her first three matches, the lefty has dropped an average of fewer than three games per match.

Despite seeing amazing success in the juniors – she is currently the reigning Orange Bowl champion and the junior World No.5 – her performance this week is catching her a bit by surprise.

“Huge smile on my face,” she said after winning her quarterfinal match in Las Vegas. “I’m honestly speechless. Everyone is so talented playing here so many different styles of play and I have been able to perform playing so many players with different styles and coming out on top.”

She started off her great week by dominating the No.6 seed Gabriela Ce of Brazil 6-2, 6-0, followed it up with a win over another higher-ranked player in American Alycia Parks 6-3, 6-0 and reached Saturday’s semifinals with a 6-3, 6-2 win over Colombian qualifier Emiliana Arango – a match in which she needed to make a few adjustments to come out on top.

“At the beginning I was missing easy balls,” she said. “I adjusted and started to come to net. My backhand return was good. I was trusting my game and style. Trust in my game was the most important and helped me win.”

Despite her great play thus far, she must maintain her form in her next match against another young player who is at her career-high ranking – Canada’s Katherine Sebov. But her plan is to not change a thing – whatever she’s doing, it’s working.

“I’m going to go out to dinner at 5pm and chill at the hotel,” she revealed. “Not going to change anything, that’s what I’ve been doing all week.”

Semifinal matches begin at 11am at the Darling Tennis Center in Las Vegas.