Since his debut with the Seattle Mariners in 2022, starting pitcher George Kirby has been nothing short of a phenomenon. But here’s where it gets controversial: can he still reach another level? From the moment he stepped onto the mound, it was clear that Kirby possessed a rare blend of talent—a pitcher who could consistently hit the upper-90s while maintaining the kind of pinpoint control that’s drawn comparisons to Hall of Famer Greg Maddux. And this is the part most people miss: such a combination is almost unheard of in the modern game.
Kirby’s early career has been a masterclass in consistency and excellence. Despite debuting over a month into the 2022 season, he finished sixth in Rookie of the Year voting. The following year, he earned his first All-Star nod, and across his first three seasons, he’s never posted an ERA above 3.53 or a walk rate higher than 4.1%. These aren’t just numbers—they’re a testament to his ability to dominate at the highest level.
However, 2025 was a season of inconsistency for Kirby, marked by his first stint on the injured list due to right shoulder inflammation. After missing the first two months, he struggled to find his rhythm, leaving fans and analysts wondering: was this a setback, or an opportunity for growth? As Kirby enters 2026, he’s a prime candidate for a bounce-back season, but the bigger question lingers: what’s the missing piece that could propel him to new heights?
During a recent episode of Bump and Stacy on Seattle Sports, co-host Stacy Rost boldly suggested that Kirby still has untapped potential. Yahoo Sports’ Jordan Shusterman echoed this sentiment, pointing to Kirby’s pitch repertoire as the key to unlocking the next level. “The number of pitches these guys throw is fascinating,” Shusterman noted, “but with Kirby, it’s about finding that one secondary pitch that can elevate his game.”
Here’s where it gets intriguing: while Kirby posted a career-high 26.7% whiff rate last season—his first time above league average—he still lacks a clear put-away secondary pitch. His four-seamer and sinker accounted for the majority of his strikeouts, with his slider trailing behind. Compare that to teammate Logan Gilbert, whose splitter became a game-changer, and you see the potential gap in Kirby’s arsenal.
Shusterman speculates that adding a splitter or refining another breaking ball could be the answer. “Kirby’s command is already elite,” he said. “It’s about finding that secondary pitch to generate more swing-and-miss opportunities.”
But here’s the controversial question: is it as simple as adding a new pitch, or does Kirby need to rethink his approach entirely? Some argue that his reliance on fastballs could be holding him back, while others believe he’s just one adjustment away from greatness.
As Kirby prepares for 2026, the baseball world is watching closely. Will he find that missing piece, or will he continue to thrive as a pitcher who defies conventional wisdom? One thing’s for sure: George Kirby’s journey is far from over, and the debate over his potential is just heating up.
What do you think? Can Kirby reach another level, and if so, what’s the key to unlocking it? Let us know in the comments—we’re eager to hear your take on this budding superstar.
