Butch Leitzinger (WSC)
Andy Wallace (GT1)
David Brabham (GT1)
Larry Schumacher (GT2)
Mark Simo (GT3)
Mistrz producentów
Ferrari (WSC)
Panoz (GT1)
Porsche (GT2)
BMW (GT3)
| Runda | Tor | Data | Klasa | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|---|
| 1 | Sebring Sebring 12 godzin | 1998.03.22 | GT3 | BMW M3 | PTG | |
| 2 | Las Vegas | 1998.04.26 | GT3 | BMW M3 | PTG | |
| 3 | Lime Rock Park | 1998.05.25 | GT3 | BMW M3 | PTG | |
| 4 | Road Atlanta | 1998.06.21 | GT3 | BMW M3 | PTG | |
| 5 |  Mosport Park | 1998.08.09 | GT3 | BMW M3 | PTG | |
| 6 | Sebring | 1998.09.20 | GT3 | Porsche RSR | Alex Job Racing | |
| 7 | Road Atlanta Petit Le Mans | 1998.10.10 | GT3 | Porsche 911 RSR | Team A.R.E. | |
| 8 | Laguna Seca | 1998.10.25 | GT3 | Porsche 911 RSR | Alex Job Racing |