The 1997 Exxon World Sports Car Championship and Supreme GT Series seasons were the 27th season of the IMSA GT Championship. It consisted of open-cockpit prototypes referred to as World Sports Car (WSC) and Grand Tourer-style racing cars divided into GTS-1, GTS-2, and GTS-3 classes.
It began February 1, 1997 and ended October 26, 1997 after eleven rounds. 1997 would mark the final year in IMSA GT for the 24 Hours of Daytona and the Six Hours of Watkins Glen. In 1998, the SCCA's revived United States Road Racing Championship would acquire the events. Taken from http://en.wikipedia.org/wiki/1997_IMSA_GT_Championship_season.

Race Results:

Rnd	Race	Length	Class	Overall winner	Circuit	Date
1	Rolex 24 at Daytona	24 Hours	Both		Daytona International Speedway	1-Feb
				#20 Riley & Scott Mk III Ford 002  Dyson Racing		2-Feb
2	Superflo 12 Hours of Sebring	12 Hours	Both	#3 Ferrari 333 SP 003  Team Scandia	Sebring International Raceway	15-Mar
3	NAPA Grand Prix of Atlanta	2 Hours	GTS	#66 Panoz GTR-1 Ford 002  Panoz Motorsports	Road Atlanta	19-Apr
			WSC	#16 Riley & Scott Mk III Ford 001  Dyson Racing		20-Apr
4	Dodge Dealers Grand Prix	1 Hour 45 Minutes	GTS	#91 Chevrolet Camaro  Rock Valley Oil & Chemical Co. Inc.	Lime Rock Park	26-May
			WSC	#30 Ferrari 333 SP 010  Moretti Racing
5	First Union Six Hours at the Glen	6 Hours	Both	#16 Riley & Scott Mk III Ford 001  Dyson Racing	Watkins Glen International	1-Jun
	24 Hours of Le Mans			#7 Joest Racing TWR Porsche WSC-95		14-Jun
6	California Grand Prix	1 Hour 45 Minutes	GTS	#66 Panoz GTR-1 Ford  Panoz Motorsports	Sears Point Raceway	13-Jul
		2 Hours	WSC	#16 Riley & Scott Mk III Ford 001  Dyson Racing
7	Mosport Festival	1 Hour 45 Minutes	GTS	#01 Porsche 911 GT1  Rohr Corp.	Mosport International Raceway	31-Aug
		2 Hours	WSC	#43 Ferrari 333 SP 004b  Central Arkansas Racing Services, Inc.
8	Sportscar Grand Prix	1 Hour 45 Minutes	GTS	#01 Porsche 911 GT1  Rohr Motorsport	Las Vegas Motor Speedway	20-Sep
		2 Hours	WSC	#20 Riley & Scott Mk III Ford 002  Dyson Racing
9	Festival of Road Racing	2 Hours	WSC	#30 Ferrari 333 SP 010  Moretti Racing	Pikes Peak International Raceway	28-Sep
		1 Hour 45 Minutes	GTS	#00 Porsche 911 GT1  Rohr Motorsport
10	NAPA Sebring Octoberfest	2 Hours	WSC	#30 Ferrari 333 SP 010  Moretti Racing	Sebring International Raceway	18-Oct
		1 Hour 45 Minutes	GTS	#01 Porsche 911 GT1  Rohr Motorsport
11	VISA Sports Car Championship	1 Hour 45 Minutes	GTS	#96 Panoz GTR-1 Ford	Laguna Seca Raceway	26-Oct
			WSC	#20 Riley & Scott Mk III Ford 002  Dyson Racing