[4] Luca Cadalora is brought in to replace Freddie Spencer, who’s been released by team manager Giacomo Agostini.
In the first lap Wayne Rainey’s in front of a group of 4 riders, with Kevin Schwantz, Christian Sarron and Eddie Lawson.
Mackenzie is having a good day, as he passes Lawson and Rainey to move into second behind Schwantz.
Mackenzie takes the lead for half a lap, but Schwantz gets it back at the chicane, and soon Lawson passes him as well.
Schwantz takes the win from Lawson by a few bike lengths, and Rainey comes in third.