Copyright 2003, Roadracing World Publishing, Inc.

Tommy Hayden fought off a strong challenge from Vincent Haskovec–who took the lead at one point–to win the Superstock race at Infineon Raceway. Adam Fergusson was third.

Results
1. Tommy Hayden, ZX-6R, 17 laps
2. Vincent Haskovec, GSX-R750, -2.721 seconds
3. Adam Fergusson, GSX-R750, -9.5
4. Jason DiSalvo, YZF-R6, -15.6
5. Jimmy Moore, GSX-R750, -17.1
6. Josh Hayes, GSX-R750, -19.9
7. Tony Meiring, ZX-6R, -20.2
8. Opie Caylor, GSX-R750, -20.3
9. Jordan Szoke, GSX-R750, -26.6
10. John Haner, GSX-R750, -26.9
11. Mike Ciccotto, GSX-R750, -37.7
12. Jeremy Toye, GSX-R750, -40.9
13. Chris Ulrich, GSX-R750, -46.4 (crashed)
14. Alan Schmidt, GSX-R750, -52.3
15. Jake Holden, GSX-R750, -52.56
16. Matt Furtek, GSX-R750, -53.05
17. Brian Stokes, GSX-R750, -54.31
18. Michael Hannas, GSX-R750, -68.98
19. Danny Eslick, GSX-R750, -69.19
20. Jeff Bostrom, GSX-R750, -80.51
21. Hawk Mazzotto, GSX-R750, -89.49
22. J.J. Roetlin, GSX-R750, -89.63
23. Doug Pitcock, GSX-R750, -97.46
24. Mickey Lane, GSX-R750, -1 lap
25. Chad Rolland, GSX-R750, -1 lap
26. Tom Wertman, GSx-R750, -1 lap
27. Jason Chisum, GSX-R750, -1 lap
28. Corey Sarros, GSX-R750, -1 lap
29. Bryan Edginton, GSx-R750, -1 lap
30. Michael Dantonio, GSX-R750, -1 lap
31. Mark Degross, CBR600RR, -1 lap
32. Jay Jacobson, GSX-R750, -1 lap
33. Paul Timman, GSX-R750, -2 laps
34. Rocky Caceres, GSX-R750, -2 laps
35. Rich Conicelli, GSX-R750, -2 laps
36. Mark Simon, GSX-R750, -7 laps
37. Jason Peters, GSX-R750, -11 laps
38. John Dugan, GSX-R750, -15 laps, DNF, crash