"All of Garrett Crochet's pitches were really good. Except his changeup. That one was just okay. His four-seam was dominant, his cutter racked up strikes, and nobody could touch his sweeper. What made him truly great, however, was his sinker. Last season, lefties had a .307 on-base percentage against Crochet. He started throwing the sinker in August 2024. Nobody hit it out of the infield."
"This season, he ramped up the usage, throwing it 37% of the time against lefties. He located it over the inside part of the plate, and nobody could square up the ball. Lefties hit .176 against the pitch with a 70% ground ball rate. Their on-base percentage against Crochet fell from .307 to .193. According to this guy named Rick and this other guy named Rob on Twitter, that's the ninth-lowest OBP in the history of the sport."
Garrett Crochet displayed dominant four-seam, cutter, and sweeper pitches, while his changeup remained merely adequate. He began throwing a sinker in August 2024 that yielded no infield-to-outfield hits last season. In 2025 he increased sinker usage to 37% against lefties, locating it inside; left-handed batters hit .176 with a 70% ground ball rate and saw their OBP drop from .307 to .193. Aroldis Chapman reduced his walk rate from over 14% to 6.6% after adopting PitchCom-driven location calling, which improved slider placement glove-side and low, producing a 34% putaway rate.
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