Tom Verducci of Sports Illustrated reports that Major League Baseball will mandate that teams store baseballs in “an air-conditioned and enclosed room[s]” this season. He adds that the league will install climate sensors in each room to measure temperature and humidity during the 2018 season, with such data being used to determine if humidors — like the ones being used in Colorado and Arizona — are necessary for 2019. This move comes a year after Major League Baseball’s single season, league-wide home run record was shattered, with 6,105 dingers being hit. It also comes after a year in which two different studies — one by Ben Lindbergh and Mitchel Lichtman for The Ringer, and another by FiveThirtyEight’s Rob Arthur — found evidence that baseballs were altered at some point around the middle of the 2015 season which coincided with home run numbers spiking in the middle of that year, quite suddenly. Also coming last year: multiple player complaints about the baseball seeming different, with pitchers blaming a rash of blister problems stemming from what they believed to be lower seams on the baseballs currently in use than those in use in previous years. Players likewise complained about unusually smooth and/or juiced baseballs during the World Series, which some believe led to a spike of home runs in the Fall Classic. To date, Major League Baseball has steadfastly denied that the balls are a problem, first issuing blatantly disingenuous denials, and later using carefully chosen words to claim nothing was amiss.
Major League Baseball orders balls stored in climate controlled rooms for some reason
Hardball Talk | Feb 23