Russell E. Diethrick, Jr. Park is a stadium in Jamestown, New York. It opened in 1941 and holds 3,000 people. Primarily used for baseball, Diethrick Park was home to teams in the New York-Penn League, a short season minor league baseball league, from its opening until 2014. It is also home to the Jamestown Community College baseball team as well as Jamestown High School's baseball team.