Kraj:
Stany Zjednoczone
Ilość zwycięstw:9
| LP | Seria | Sezon | Data | Klasa | Tor/Rajd | Pojazd | Zespół/Zgłaszający |
|---|---|---|---|---|---|---|---|
| 1 | IMSA GT Championship | 1978 | 1978.07.30 | GTO | Sears Point |
Porsche Carrera |  |
| 2 | IMSA GT Championship | 1978 | 1978.09.04 | GTO | Road Atlanta |
Porsche Carrera | Andial Porsche-Meister Homes |
| 3 | IMSA GT Championship | 1979 | 1979.04.08 | GTO | Road Atlanta |
Porsche Carrera | Johnson Racing |
| 4 | IMSA GT Championship | 1979 | 1979.04.29 | GTO | Laguna Seca |
Porsche Carrera | Johnson Racing |
| 5 | IMSA GT Championship | 1979 | 1979.05.13 | GTO | Hallett |
Porsche Carrera | Johnson Racing |
| 6 | IMSA GT Championship | 1979 | 1979.05.28 | GTO | Lime Rock Park |
Porsche Carrera | Johnson Racing |
| 7 | IMSA GT Championship | 1979 | 1979.06.17 | GTO | Brainerd |
Porsche Carrera | Johnson Racing |
| 8 | IMSA GT Championship | 1979 | 1979.07.15 | GTO | Mid-Ohio |
Porsche Carrera | Johnson Racing |
| 9 | IMSA GT Championship | 1979 | 1979.07.29 | GTO | Sears Point |
Porsche Carrera | Johnson Racing |
| Zwycięstwa wg roku | |
|---|---|
|
2
1978
|
7
1979
|
| LP | Tor | Ilość zwycięstw |
|---|---|---|
| 1 | Sears Point |
2 |
| 2 | Road Atlanta |
2 |
| 3 | Laguna Seca |
1 |
| 4 | Hallett |
1 |
| 5 | Lime Rock Park |
1 |
| 6 | Brainerd |
1 |
| 7 | Mid-Ohio |
1 |
| LP | Producent | Ilość zwycięstw |
|---|---|---|
| 1 |  Porsche |
9 |
| LP | Partner | Ilość zwycięstw |
|---|---|---|
| 1 | Alan Johnson |
1 |