Over nine games this spring, Clapp has compiled a 0.80 ERA with 27 strikeouts in 26.1 innings pitched. Oakwood is 19-1 and bound for the postseason.
Clapp, a sophomore right-hander, has been used out of the bullpen for most of the season, going anywhere from one to three innings.
Earlier this month, Clapp took to the same mound that MLB stars Nolan Ryan, Jered Weaver and Troy Percival called home for parts of their career in the Halo Classic at Angel Stadium. He needed just 10 pitches to record a 1-2-3 fifth inning.
He has pitched twice since, earning the start in both outings.
The first was against Brentwood when he pitched five scoreless frames while striking out four. Then against Santa Monica he pitched into the sixth inning, allowing just one earned run while picking up the win April 24.
That win was exactly one year after Clapp made his varsity debut as a freshman, when he pitched three innings of one-hit ball in the first game of a doubleheader.
Oakwood reached the first round of the playoffs in 2025 and went 15-8 as Clapp appeared in two games without allowing a run. Including his freshman year, Clapp has a career 0.69 ERA.
The Owls began 2026 with a 15-game winning streak and have only lost once, which was in extra-innings.
Rocko's baseball skills first arrived in the spotlight when he was 12 on the Jimmy Kimmel Show. With Knoxville as a guest promoting his show Reboot, he was called out of the audience and Kimmel challenged him to strike his dad out, which he did.
"I had a pretty good arm, he's got a great arm," Knoxville said on the show.
Knoxville excelled at high school baseball when he was known by his real name, P.J. Clapp. In 1989 as a senior at South Young, now
South-Doyle (Knoxville, Tenn.), he earned Knoxville Interscholastic League honorable mention honors as a pitcher. Also on that list was a freshman named Todd Helton of
Knoxville Central (Knoxville, Tenn.), who he played against and is now in the MLB Hall of Fame.
Central also featured future seven-year MLB veteran Bubba Trammell, who was a year younger than Knoxville. The two had competed against each other since elementary school.
"I was a decent hitter growing up but not like Bubba," Knoxville told MaxPreps. "And definitely not like Todd. They were different."
After high school, Knoxville stopped playing baseball and moved to Los Angeles to focus on his career.
Jackass was first released in 2000 and the final installment of the series, Jackass: Best and Last will be released June 26.
His love for the game never died and he said it's exciting to watch his son.
"I'm very proud of him and the season he is having," Knoxville said. "Most of all, how he conducts himself on and off the field."
