After the Angels left town, MacKenzie Field sat dormant to professional baseball for 15 years. The ballpark went back to being an amateur and scholastic facility. That was until 1997, when the Pittsfield Mets decided to start testing the Springfield market again. For 2 years, the Single-A NY Penn League's Mets played one-off home games at MacKenzie Field, to see if Springfield was ready for professional baseball again. In the end, the Mets would move to Brooklyn, and professional affiliated baseball would not return to Holyoke.