That's because the William Penn High School junior threw a perfect game against Charter School of Wilmington last Thursday.
He threw 64 pitches in seven full innings, struck out seven batters and did not allow a single runner to get on base.
It was the first perfect game in William Penn's history dating back to 1908.
"It was later that night that I found out that it was the first perfect game and that was when I finally realized it was actually something big," Grygo said.
"I'm so proud," pitching coach Brian Honeycutt said. "I can't tell you how proud I am. He's a good boy. He works hard at what he does. He listens. There are no problems with Brandon. He's just a great kid and it's great to be a part of that."
The Colonials won the game 6-0.