Mike Groff
| Runda | Tor | Data | Kierowca | Pojazd | Zespół |
|---|---|---|---|---|---|
| 1 | Phoenix | 1989.04.08 | March 86A - Buick | Leading Edge Motorsports | |
| 2 | Long Beach | 1989.04.16 | March 86A - Buick | Landford Racing | |
| 3 | Milwaukee Mile | 1989.06.04 | March 86A - Buick | Leading Edge Motorsports | |
| 4 | Detroit | 1989.06.18 | March 86A - Buick | TEAMKAR International | |
| 5 | Portland | 1989.06.25 | March 86A - Buick | Landford Racing | |
| 6 | Meadowlands | 1989.07.16 | March 86A - Buick | Leading Edge Motorsports | |
| 7 |  Toronto | 1989.07.23 | March 86A - Buick | Performance Motorsports | |
| 8 | Pocono | 1989.08.19 | March 86A - Buick | Landford Racing | |
| 9 | Lexington | 1989.09.03 | March 86A - Buick | P.I.G. Racing | |
| 10 | Elkhart Lake | 1989.09.10 | March 86A - Buick | Landford Racing | |
| 11 | Nazareth | 1989.09.24 | March 86A - Buick | Leading Edge Motorsports | |
| 12 | Laguna Seca | 1989.10.15 | March 86A - Buick | C.P. Racing |
