That incident followed Farfus only realistic opportunity of making eighth place - and pole for race two - when Muller slowed slightly in turn eight. There wasn't room for the Brazilian to take advantage, however, and the order remained more or less set to the flag.
More or less in that there was a minor change among the SEATs, with Yvan Muller gaining a place from Coronel, who slowed on the final lap and almost ceded further ground to Priaulx on the run to the flag but held on to score his first points since round one.
Similarly, there was no change in the privateer ranks, with d'Aste holding on for eleventh overall, two pots ahead of Corthals. Local hero Tiago Monteiro was unable to make up any significant ground after a poor qualifying performance and ended the race 15th.
Out front, however, it was a case of the blues for everyone else as the Chevrolet team racked up its best finish in three seasons of WTCC competition, Menu taking his third win from pole in 2007 to move up one place in the standings.
With the overall leader, Farfus, not scoring and having to start race two from ninth on a track with few passing opportunities, the second race will offer a chance for the Brazilian's pursuers - all of whom did add to their tally - to close the gap. Farfus holds a scant three-point lead over Jorg Muller, with the German's front row partner Priaulx next up.