UNITED STATES GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Wayne Rainey | — | 20 |
| 2 | Kevin Schwantz | — | 17 |
| 3 | Eddie Lawson | — | 15 |
| 4 | Kevin Magee | — | 13 |
| 5 | Niall Mackenzie | — | 11 |
| 6 | Christian Sarron | — | 10 |
| 7 | Pierfrancesco Chili | — | 9 |
| 8 | Mick Doohan | — | 8 |
| 9 | Bubba Shobert | — | 7 |
| 10 | Dominique Sarron | — | 6 |
| 11 | Alessandro Valesi | — | 5 |
| 12 | Marco Gentile | — | 4 |
| 13 | Simon Buckmaster | — | 3 |
| 14 | Bruno Kneubühler | — | 2 |
| 15 | Michael Rudroff | — | 1 |
| 16 | Francisco Gonzales | — | |
| 17 | Vincenzo Cascino | — | |
| — | Ron Haslam | OUTSTND | |
| — | Tadahiko Taira | OUTSTND | |
| — | Nicholas Schmassman | OUTSTND | |
| — | Randy Mamola | OUTSTND | |
| — | Eugene Brown | OUTSTND | |
| — | Wayne Gardner | OUTSTND | |
| — | Freddie Spencer | NOTSTARTED |
250cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | John Kocinski | — | |
| 2 | Jim Filice | — | |
| 3 | Luca Cadalora | — | |
| 4 | Sito Pons | — | |
| 5 | Carlos Cardús | — | |
| 6 | Jacques Cornu | — | |
| 7 | Jean Philippe Ruggia | — | |
| 8 | Reinhold Roth | — | |
| 9 | Loris Reggiani | — | |
| 10 | Masao Shimizu | — | |
| 11 | Ivan Palazzese | — | |
| 12 | Alberto Puig | — | |
| 13 | Jochen Schmid | — | |
| 14 | Didier De Radigues | — | |
| 15 | Garry Cowan | — | |
| 16 | Alex Barros | — | |
| 17 | Fabio Barchitta | — | |
| 18 | Stefano Caracchi | — | |
| 19 | Harald Eckl | — | |
| 21 | Fausto Ricci | — | |
| 22 | Andreas Preining | — | |
| — | Juan Garriga | OUTSTND | |
| — | Helmut Bradl | OUTSTND | |
| — | Martin Wimmer | OUTSTND | |
| — | Daniel Amatriain | OUTSTND | |
| — | Alberto Rota | OUTSTND | |
| — | August Auinger | OUTSTND |