Chase Petty Strikes Out Eight in Dominant Louisville Triple-A Debut

Ranked the No. 9 prospect in the Cincinnati Reds system by MLB Pipeline, Chase Petty needed just 72 pitches to match his single-game strikeout high from all of 2025 on Louisville's Opening Night.

Petty delivered a scoreless 4 2/3-inning performance for the Bats on March 27, striking out eight Omaha Storm Chasers batters while throwing 49 of those 72 pitches for strikes in a 2-1 Louisville victory. The eight strikeouts matched his single-game high from the entire 2025 season, accomplished here in a single start with the pitch count still manageable.

The efficiency wasn't accidental. Manager Pat Kelly pulled the 22-year-old after recording two outs in the fifth inning, consistent with a pitch count program carried over from spring training. That structured approach signals Cincinnati's intent: build Petty toward a mid-season rotation window rather than push him immediately.

At the center of those results is a new weapon. Over the offseason, working at Baseball Performance Center, Petty developed a kick changeup that observers described as an entirely different pitch from anything he had previously thrown. He deployed it 21 times in the debut. Petty described the grip to reporter Charlie Goldsmith: "It's almost like holding a circle change, spike up the middle finger on the seams and let it rip. When it's good, it's going to be really good." The absence of a true swing-and-miss secondary offering had long been identified as the primary gap in his profile; in one start, the kick changeup gave scouts a reason to reassess.

Petty's existing arsenal is built for impact. Baseball America grades his four-seam fastball at 95-97 mph, his sinker at 93-95, a hard slider at 85-87, and a 90 mph cutter. Add a functional changeup and the profile starts to resemble a major league rotation starter.

That matters given the 2025 context. After making his MLB debut on April 30, 2025, at just 22 years and 26 days old as the youngest Reds pitcher to appear in a game that season, Petty went 0-3 with a 19.50 ERA over six innings at the big-league level. At Triple-A, a promising first half gave way to a 6.39 ERA across 26 starts. He was optioned back to Louisville heading into 2026.

On Opening Night, Petty retired the side in order in the first inning, striking out Abraham Toro to close it, then navigated his most dangerous moment in the second by striking out Josh Rojas to strand runners on second and third. Reliever Trevor Kuncl, making his own Triple-A debut, threw 1 1/3 perfect innings to seal the result.

Blake Dunn went 2-for-4 with a run scored from the leadoff spot, and Héctor Rodríguez delivered a first-inning RBI double that proved to be the decisive run. Edwin Arroyo, another top Cincinnati infield prospect making his Triple-A debut in the same game, went 1-for-4 with a double. Louisville swept the opening series from Omaha three games to none.

Petty was selected 26th overall by the Minnesota Twins in the 2021 MLB Draft out of Mainland Regional High School in Linwood, New Jersey, the same school that produced Mike Trout. On March 13, 2022, the Twins sent him to Cincinnati as the centerpiece of the Sonny Gray trade, the Reds surrendering the two-time All-Star starter to acquire a 19-year-old arm they believed could anchor their rotation for years.

Petty turns 23 on April 4. If the kick changeup holds and the pitch count program gradually extends his outings, Cincinnati's most scrutinized pitching prospect could be back in the Reds rotation before summer.