Jonathan Rea (1:41.712) won pole during Saturday’s Superpole sessions at Portimao with a new lap record time. He held off second place starter Carlos Checa with that fast lap set early in the final S3 session. The two riders had dominated the times on Friday, with Eugene Laverty and Marco Melandri completing the front row of Starters for Sunday’s races. Though Rea’s fast lap came early in S3, there was plenty of nail biting for riders further back the pack. Multiple riders hauled themselves out of the knockout zone on final flying laps after the flag. Sylvain Guintoli, Jakub Smrz, Joan Lascorz, and Noriyuki Haga complete the second row.
Max Biaggi returned for this final round of the 2011 World Superbike season after injury kept him from contesting the championship. Fellow Italian Roberto Rolfo did not compete, having broken his left kneecap in a bicycle accident near his home earlier in the week. Santiago Barragan replaced him at Pedericini Kawasaki. Fellow Kawasaki rider Chris Vermeulen ended this season as he began it, attempting to recover fully from a knee injury sustained in 2010. He did not participate in the weekend. However, Portimao saw Josh Waters and Yoshimura Suzuki again at a WSBK round, though the Australian was knocked out in the final qualifying practice and started only 21st. Finally, word came from Troy Corser that he would not be returning to WSBK racing after this final weekend of the season.