MLB

MLB investigation confirms that baseballs have changed

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You know the baseballs are different. We know the baseballs are different. Pitchers have been saying the baseballs are different. And now Major League Baseball has acknowledged that the baseballs are different in a report of findings by a team of scientists from some of the top universities in the world, like Stanford, Caltech, and M.I.T.

You can read the whole thing here in PDF form. Here’s the gist …

The ball is not bouncier — or “juiced” — but it is most definitely carrying farther. From MLB.com’s Anthony Castrovince …

Though the study did not discover meaningful changes in the ball’s lift, it found that the drag coefficient of MLB balls has decreased since 2015. The researchers used a physics model to calculate that if the change in home run rate was attributable entirely to changes in drag, one would expect the drag coefficient to have decreased by approximately 0.012. The exact change in drag coefficient in the time period studied — if you’re scoring at home — was 0.0153.

It’s not the seams or the core that has changed — those aspects were tested — and it’s not the weather either. In fact, the commision couldn’t figure out what is causing the decrease in drag, despite numerous tests on all elements of the ball. It might simply come down to manufacturing advancements. Looking at you, Rawlings …

“Rawlings is always trying to improve the manufacturing process to make it more uniform,” Alan Nathan, professor emeritus of physics at the University of Illinois at Urbana-Champaign told MLB.com. “So the interesting question that comes up is whether the goal should be to improve the manufacturing process or to keep the ball performing exactly the way it is, regardless of whether it’s improved or not.”

Baseball Prospectus began studying this three years ago, as home runs began to increase around the league. Their write-up on MLB’s report is a must-read.

Report: Yankees, Reds finalizing trade for Sonny Gray

Sonny Gray
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Barring physicals and roster reshuffling, the Yankees and Reds are all but ready to finalize a deal involving right-hander Sonny Gray, Fancred’s Jon Heyman reported Saturday. The exact return has not been confirmed, but Heyman hears that the Yankees will receive top infield prospect Shed Long and a draft pick in exchange for Gray, with an as-yet unnamed third player possibly involved as well.

According to several reports earlier in the day, negotiations came down to the wire as the Yankees first had their eye on the Reds’ no. 6 prospect, 22-year-old catcher Tyler Stephenson. The Reds ultimately elected to hang on to Stephenson and send Long to New York, as they currently have a greater need for catching depth and weren’t expected to be able to provide a full-time role for the infielder in 2019. Long, 23, is ranked seventh in the Reds’ system and appears to be nearing his MLB debut after batting .261/.353/.412 with 12 homers and a .765 OPS across 522 PA at Double-A Pensacola last year.

Gray figures to step into a prominent role within the Reds’ rotation, which is likely to be a mix of recently-acquired left-hander Alex Wood and right-handers Tanner Roark, Luis Castillo, Anthony DeSclafani, and Tyler Mahle, among several others. Despite Gray’s struggle to remain productive on the mound — he’s three years removed from his only All-Star campaign and turned in a disappointing 4.90 ERA and 2.16 SO/BB rate in 2018 — he might yet help stabilize a team that trotted out the fifth-worst rotation in the majors last season. If, on the other hand, the veteran righty finds the hitter-friendly confines of Great American Ball Park a little too unforgiving this year, the Reds can take some comfort in the fact that he’s due to enter free agency in 2020.