When baseball slugger Mark McGwire of the St. Louis Cardinals hit his record-breaking, 62nd home run on Sept. 8, 1998, the ball barely passed over the left field fence at Busch Stadium in St. Louis. The same hit would not have been a home run at, say, Fenway Park in Boston.
This episode suggests an interesting question: How hard is it to hit a home run in different ballparks?
One factor that could affect home-run hitting is that major-league ballparks have somewhat different dimensions.