Sonny Guadarrama opened the scoring int he first half and his attacking partner Andre Lima doubled the lead late in the second half to help the Bold down the Tulsa Roughnecks 2-0 on Tuesday night.
"It was a great performance, we had so many chances," Serrano said. "We had a clean sheet and we're moving forward as a team. "
Austin will get a rematch when it hosts San Antonio FC - a team they beat 1-0 earlier in the USL season - in the third round of the Open Cup on May 29.
Tuesday was a dominant performance by the Austin offense, which was largely the same lineup that beat OKC Energy on Friday. The Bold outshot the Roughnecks 25-10 and had 7 shots on target.
Pulling the strings was right back Sean McFarlane, who assisted on both goals.
His first assist saw his pass get dummied by Kléber and allowed Guadarrama to take one touch and find the bottom corner of the net. He then sent in a low cross from toast in front of the net for Lima to tap in.
"Every game, he's becoming more and more dangerous, and it can be hard to find players like that," Guadarrama said. "He's obviously got talent, and coach is helping him get even more out of what he can give."
Bold academy singing Beto Avila, an 18-year-old Austin native, made his professional debut in the match, subbing in for Guadarrama in the second half and picking up the second assist on the second goal of the game.
Despite signing less than a month ago, former Lonestar SC and Houston Dynamo Academy player has proven he can make an impact.
"I'm glad that coach is strong enough to give the kids a chance," Guadarrama said. "A lot of coaches don't because they're worried about the result. he's keeping his word on playing local talent. I think they deserve it."
Austin has yet to lose a game at Bold Stadium at Circuit of the Americas. The winner of the next round could see an MLS team come to the brand-new soccer stadium.
"It's always fun to play against San Antonio, and it's a big game because we know that if we win, we take that big step that I think every team in the USL wants to go out and play an MLS team," Guadarrama said.