March 21 -- Twelve Hours of Sebring, Fla.
April 4 -- Acura Sports Car Challenge of St. Petersburg (Fla.)
April 18 -- Long Beach (Calif.) Grand Prix.
May 17 -- Utah Grand Prix, Salt Lake City.
July 18 -- Northeast Grand Prix, Lakeville, Conn.
Aug. 8 -- Acura Sportscar Challenge of Mid-Ohio, Lexington, Ohio.
Aug. 16 -- Generac 500, Elkhart Lake, Wis.
Aug. 30 -- Grand Prix of Mosport, Bowmanville, Ontario.
Sept. 26 -- Petit Le Mans, Braselton, Ga.
Oct. 10 -- Monterey Sports Car Championships, Calif.
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2008 Standings
P1 Class
1. Marco Werner, 219
(tie) Lucas Luhr, 219
3. Emanuele Pirro, 156
4. Richard Berry, 106
5. Clint Field, 103
(tie) Jon Field, 103
7. Dindo Capello, 102
8. Allan McNish, 60
9. Nicolas Minassian, 46
(tie) Stephane Sarrazin, 46
11. Frank Biela, 42
12. Chris McMurray, 41
(tie) Ryan Lewis, 41
14. Tom Kristensen, 30
15. Bryan Willman, 28
(tie) John Faulkner, 28
17. Mike Rockenfeller, 26
(tie) Christian Klien, 26
19. Marcel Fassler, 21
(tie) Christijan Albers, 21
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P2 Class
1. Timo Bernhard, 203
(tie) Romain Dumas, 203
3. Scott Sharp, 162
(tie) David Brabham, 162
5. Patrick Long, 129
6. Sasha Maassen, 121
7. Butch Leitzinger, 113
(tie) Marino Franchitti, 113
9. Chris Dyson, 101
(tie) Guy Smith, 101
11. Frank Montagny, 90
12. Adrian Fernandez, 88
(tie) Luis Diaz, 88
14. Gil de Ferran, 85
(tie) Simon Pagenaud, 85
16. Emmanuel Collard, 53
(tie) Ryan Briscoe, 53
18. Andy Lally, 46
19. Helio Castroneves, 45
20. Ben Devlin, 40
(tie) Gerardo Bonilla, 40