surely you must know Red ?What is this Watkins Glen event you talk of?
http://theglen.calls.net/Tickets-Events/Events/2013/US-Vintage-Grand-Prix.aspx
focus on the events information bit near the bottom.
If you have not been and dig cars and car history and racing and cool cars well you need to try this out. The schedule is pretty heady as Friday is the Big day so for beginners , like me saturday is a best bet