Geoff Brabham (GTP)
Tomás López (Lights)
Dorsey Schroeder (GTO)
Lance Stewart (GTU)
Mistrz producentów
Nissan (GTP)
Buick (Lights)
Mercury (GTO)
Mazda (GTU)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Daytona Daytona 24 godziny | 1990.02.03 - 02.04 | GTU | Mazda RX-7 | Peter Uria Racing | |
| 2 | Miami | 1990.02.25 | GTU | Nissan 240SX | Leitzinger Racing | |
| 3 | Sebring Sebring 12 godzin | 1990.03.17 | GTU | Nissan 240SX | Leitzinger Racing | |
| 4 | Long Beach | 1990.04.21 | GTU | Mazda MX-6 | Mazda Motorsports | |
| 5 | Heartland Park | 1990.05.05 | GTU | Mazda MX-6 | Mazda Motorsports | |
| 6 | Mid-Ohio | 1990.06.03 | GTU | Dodge Daytona | Full Time Racing | |
| 7 |  Mosport Park | 1990.06.24 | GTU | Dodge Daytona | Full Time Racing | |
| 8 | Meadowlands | 1990.07.14 | GTU | Nissan 240SX | Leitzinger Racing | |
| 9 | Portland | 1990.07.29 | GTU | Mazda MX-6 | Mazda Motorsports | |
| 10 | Road America | 1990.08.19 | GTU | Mazda MX-6 | Mazda Motorsports | |
| 11 | San Antonio | 1990.09.02 | GTU | Nissan 240SX | Leitzinger Racing | |
| 12 | Watkins Glen | 1990.09.23 | GTU | Mazda MX-6 | Mazda Motorsports | |
| 13 | Lime Rock Park | 1990.09.29 | GTU | Dodge Daytona | Full Time Racing | |
| 14 | Del Mar | 1990.11.10 | GTU | Dodge Daytona | Full Time Racing |