Here's the schedule.
2005 UNITED STATES GRAND PRIX SCHEDULE
(All times local; subject to change)
THURSDAY, June 16 8 a.m.-noon Pit Walkabout
FRIDAY, June 17 Time Series Session
9:15-10 a.m. Menards Infiniti Pro Series First practice
11 a.m.-noon Formula One First practice
12:30-1:15 p.m. Menards Infiniti Pro Series Qualifying
2-3 p.m. Formula One Second practice
3:30-4:15 p.m. Porsche Michelin Supercup Practice
4:45-5:10 p.m. Formula BMW USA Practice
5:40-6:20 p.m. Porsche Michelin Supercup First qualifying
SATURDAY, June 18 Time Series Session
9-9:45 a.m. Formula One Third practice
10:15-11 a.m. Formula One Fourth practice
11:30 a.m.-12:10 p.m. Porsche Michelin Supercup Second qualifying
1-2 p.m. Formula One Qualifying
2:30-3 p.m. Formula BMW USA First race
3:30-4 p.m. Porsche Michelin Supercup First race (16 laps)
4:45-5:45 p.m. Menards Infiniti Pro Series Liberty Challenge race
SUNDAY, June 19 Time Series Session
9-10 a.m. Formula One Qualifying
10:30-11 a.m. Porsche Michelin Supercup Second race (16 laps)
11:45 a.m.-12:15 p.m. Formula One Grid presentation
1 p.m. Formula One United States Grand Prix (73 laps)
3:15-3:45 p.m. Formula BMW USA Second race
Of course, you'll have to buy tickets for parking (you can do it online). If your present tickets don't say that they include practice and qualifying days then I'd suppose that your tickets are only good for the listed days. I'm sure you'll want to clarify that with event organizers.
The website is
here.