The Toughest Pitches to Hit in Baseball by Darren Everson at the WSJ, featuring data from us here at BtBS. Pitch IDs are a mix of mine and Gameday's. [Sky: Right now the WSJ has a preview up for subscribers only, but you can find the full article in Friday's print edition and I'm pretty sure the online version will become free at some point, too. Tune in Friday here at BtB for some additional related stats. Nice job, Harry.] Update: Expanded article is up.