The 400-acre (160 ha) park features 26 baseball and softball diamonds, as well as 31 multipurpose fields for soccer, football, and lacrosse.

The Grand Park Events Center features three full-sized indoor soccer fields, a restaurant, and administrative offices.

Grand Park has also hosted notable appearances such as Machine Gun Kelly and Donald Trump during his 2016 presidential campaign in the main events center.

[1] The sports complex was conceived by Westfield Mayor Andy Cook, who campaigned on the issue and won over critics of the plan.

The architect of record is Eric Weflen, AIA; RQAW Corporation Starting in 2018, Grand Park has been the home field of the Indianapolis AlleyCats, a team in the Central Division of the Ultimate Frisbee Association.