MLB pitchers adapt mechanical approaches to improve performance in September

Starting pitchers across the league are adjusting mechanics and pitch usage as the season nears its conclusion. Tyler Mahle has recorded a 1.48 ERA and 0.96 WHIP over five starts with the Braves by increasing his four-seam fastball velocity and elevating the pitch in the strike zone. Mahle also shifted his usage, throwing his splitter nearly 39% of the time since joining Atlanta. Meanwhile, Payton Tolle of the Red Sox experienced decreased swinging strike rates over four recent starts following a change in the vertical movement profile of his cutter. Recent outings show Tolle beginning to regain his previous horizontal movement on the pitch. Elsewhere, the Brewers have addressed health concerns regarding Kyle Harrison following his return from a forearm injury. These adjustments provide insight into how pitchers manipulate their arsenals to manage output during the final stretch of the season.

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