• Exit velocity has dropped by 2.7 mph, from 89.6 in 2016-17 to 87.6 this year
• Home runs per game has been clipped from 2.6 per game to 1.9 per game (29.6 percent)
• Runs per game are down from 12.4 to 7.2
• Chase Field leads MLB in biggest reduction of hard-hit percentage (6.1), exit velocity drop on fly balls and line drives (3 mph) and change in weighted on-base percentage (-.075). No other venue has a hard-hit percentage that has dropped more than 2.7 percent (Detroit) and none has seen an exit velocity change on such hits fall more than 1.1 mph (Philadelphia and Cincinnati).