In the MX1 class, Antonio Cairoli had already claimed the title - entering the final round an unbeatable 50 points clear of KTM's Max Nagl. The Italian will have been grateful for that advantage, since he had a bad day in Brazil, claiming only 6-12 race finishes.
That was still enough for the Red Bull Yamaha star to finish the year 36 points clear of Nagl, who took 2-5 race finishes on a day when Belgians Clement Desalle and Steve Ramon shared the moto wins.
Having held off Nagl in race one, when Ramon was only seventh, Desalle - who thrilled the fans by occasionally clearing a lengthy uphill triple - was unable to reel in the Teka Suzuki rider in race two, and instesda found himself under late pressure from Josh Coppins (Monster Yamaha).
Desalle held on to second by 1.6sec and took overall victory by a comfortable eight points from Ramon. Desalle, the surprise of the MX1 season, thus finished the year third in the championship, having pulled eleven points clear of Coppins' team-mate Davide Philippaerts.
The 2008 world champion took 3-7 finishes on Sunday and claimed fourth in the championship by just two points from 2010 team-mate Ken de Dycker, whose Teka Suzuki seat looks set to go to Desalle.
Coppins, whose future plans are unknown, confirmed sixth in the standings.