Table:
text: 1997 IMSA GT Championship season
Schedule
Schedule
Race Length_ Class_ Circuit Date_
Rolex 24 at Daytona 24 Hours Both Daytona International Speedway February 1 February 2
Superflo 12 Hours of Sebring 12 Hours Both Sebring International Raceway March 15
NAPA Grand Prix of Atlanta 2 Hours GTS Road Atlanta April 19
NAPA Grand Prix of Atlanta 2 Hours WSC Road Atlanta April 20
Dodge Dealers Grand Prix 1 Hour 45 Minutes GTS Lime Rock Park May 26
Dodge Dealers Grand Prix 1 Hour 45 Minutes WSC Lime Rock Park May 26
First Union Six Hours at the Glen 6 Hours Both Watkins Glen International June 1

Question: On which circuit did the IMSA GT championship season take place on June 1, 1997 with a class of both?