As a result of Sete's third victory of the year, Rossi's title lead has now been reduced to 17-points over Gibernau, but Biaggi has now slipped to 26 behind the Yamaha star with six rounds to go.
Meanwhile, behind the battle for victory, several star performance were delivered: Camel Honda's Makoto Tamada charged all the way from 17th to 4th, after passing Capirossi with just two laps to go, while Neil Hodgson - injured in a controversial collision with Biaggi in Saturday practice - advanced from 16th at the end of lap one to 10th, just behind Kenny Roberts, while Norick Abe
climbed from 14th on lap one to 8th.
Meanwhile, Hopkins lived up to his pre-race form by charging from 21st on the grid all the way up to 8th - behind Edwards - by the midway point of the race, before suffering the frustration of an engine failure on lap 13.
Not so impressive were the likes of Edwards, Bayliss and Xaus; Edwards ran fifth in the early stages but would drop off to 7th, behind Checa, by the finish. Bayliss never recovered from his first turn demotion and was just 12th when he retired on the penultimate lap... while Xaus also failed to make the finish after slipping back to 16th.
WCM's James Ellison, making his MotoGP debut, and Suzuki wild-card Gregorio Lavilla joined them on the sidelines.
Full results to follow...
10. Kenny Roberts