Athletic Park's playing field was very small with distances estimated at between  to  to the left and right field foul poles. This meant home runs were common in an era otherwise not known for them. Perry Werden's 42 home runs in 1894 and 45 home runs in 1895 were several times higher than contemporary American Association or National League players and would not be challenged until Babe Ruth's rise in the 1920s.
The compact playing field at Athletic Park contributed to the prevalence of home runs during this period, which was otherwise characterized by a lack of such events. Notable players like Perry Werden took advantage of this environment, setting records in 1894 and 1895 with 42 and 45 home runs.