Foster field was established in 1982. KWC athletic officials and the facilities department used mops and grass killer to shape the diamond for the original field. In 2000, the softball field was reconstructed following damage from a tornado.

The field was named for 1969 Kentucky Wesleyan alum K. Wayne Foster and his wife Cathy in 2006. Mr. Foster was a trustee in 2003 and also from 2005-2008. It is located in front of Steele Stadium on campus.