Co-rec leagues may employ a variety of rule variations to encourage and/or limit participation by particular players including requiring the batting line-up to alternate between genders and restricting the positioning of fielders by gender.
Technological advances in game equipment are more evident in softball with high-tech bats constructed of specialized alloys providing significant advantages to teams. Rules can restrict usage of equipment to provide a more level field of competition.
Women’s leagues may use a smaller-sized softball than men’s leagues. Pitching distances and base distances may also be shortened.