MLB Acknowledges Big Performance Disparity With 2025 Baseballs Despite 'No Change' to '24

MLB baseballs are suffering from increased drag this season.
MLB baseballs are suffering from increased drag this season. / Charles LeClaire-Imagn Images

Equipment has long had a history of causing controversy in professional sports when sanctioned and unsanctioned adjustments are made.

New basketballs were a point of contention for the NBA in 2006 (the league reverted to its previous ball in a matter of months). Deflated footballs had their moment in the NFL and helmets are an ongoing dilemma. But a continuous storyline always seems to be the ball for MLB.

Sometimes it's how players—pitchers, mainly—manipulate them. A "sticky stuff" scandal took over the league for a brief moment at the start of the 2021 season. This year, the raw baseballs are playing far differently than in years past, impacting the flight of batted balls specifically.

A piece from The Athletic published Friday morning went into findings on how baseballs are flying differently this year, with an increased drag coefficient leading to fly balls coming up four feet short on equivalent hard hits compared to years prior. The coefficient adjusts for situational variants like weather and altitude.

MLB has acknowledged it, saying, "There has been no change to the manufacturing, storage or handling of baseballs this year, and all baseballs remain within specifications.”

The report went on to say that a working theory in the league office is a possible minor difference in seam width or height. Balls are hand-stitched, leaving room for possible imperfections and variance ball-to-ball, but as the report points out, "... something appears to be happening at scale: On all but four individual days this year, there has been more drag on the ball than last season’s average."

It could explain, in part, some of the seeming no-doubters we've seen that have stayed in the park for fly-outs. At the same time, some of the biggest sluggers are still able to put baseballs places we've never seen them before off the bat.


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Josh Wilson
JOSH WILSON

Josh Wilson is the news director of the Breaking and Trending News team at Sports Illustrated. Before joining SI in 2024, he worked for FanSided in a variety of roles, most recently as senior managing editor of the brand’s flagship site. He has also served as a general manager of Sportscasting, the sports arm of a start-up sports media company, where he oversaw the site’s editorial and business strategy. Wilson has a bachelor’s degree in mass communications from SUNY Cortland and a master’s in accountancy from the Gies College of Business at the University of Illinois. He loves a good nonfiction book and enjoys learning and practicing Polish. Wilson lives in Chicago but was raised in upstate New York. He spent most of his life in the Northeast and briefly lived in Poland, where he ate an unhealthy amount of pastries for six months.