Seattle International Raceway
2.25 Mile Road Course
Kent, Washington
WCAR sanctioned 1984-85
SCCA sanctioned 1989
| Race # | Date | Miles | Winner |
| 1 | 7/8/1984 | 67.5 | Dan Marvin |
| 2 | 9/23/1984 | 54 | Dan Marvin |
| 3 | 9/16/1985 | 67.5 | Dan Marvin |
| 4 | 8/19/1989 | 63 | Hiro Matsushita |
| 5 | 8/20/1989 | 63 | Mark Dismore |