Darin Erstad of the White Sox reached first on catcher's interference to lead off the game in Kansas City. John Buck was the catcher who drew the error. According to his Retrosheet record, that was the 12th time Erstad has reached first on catcher's interference in his career.
Erstad in his 12th season, but has only reached on catcher's interference in three seasons before this one as he seems to like to bunch these up. Erstad had two CI in 1998, five in 2001, and four in 2005.
Roberto Kelly holds the major league record for most times reaching on CI in a season with 8 in 1992. Kelly reached on CI 17 times in his career. Pete Rose reached on CI 29 times. Dale Berra reached 18 times on CI. Bob Stinson reached on CI 16 times.
Edwin Encarnacion of the Reds led the majors last year by reaching on CI four times.
What do all these names tell us? I have absolutely no idea.