A ballplayer trains at Driveline with motion capture sensors on.
After spending a single offseason training in a nondescript Kent industrial park, Mariners shortstop J.P. Crawford evolved. He went from a frustrating, inconsistent offensive player, to one of the best hitters at his position in the entire league last season. It was the stuff of modern baseball mythology. After just one hour hitting with Driveline Baseball founder Kyle Boddy at his facility, my left side seized up so tight I had to work the rest of the day with a heating pad pressed to my torso.
To a certain kind of fan, Driveline Baseball is synonymous with
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