For Hanninen's team-mate Kopecky, his retirement marked the first time this season that he had failed to score points. It was also poor reward for a strong performance by the Czech resident who was fastest on three stages.
Andreas Mikkelsen, who claimed his maiden IRC stage victory on Thursday evening, survived a dramatic scare on stage 14 when he encountered a herd of cows in the middle of the road. Despite veering off the stage he was unable to avoid striking two cows, which left his M-Sport Ford Fiesta S2000 with extensive bodywork damage. He was able to continue and eventually finished fourth despite his powersteering failing two stages from the end.
"We were flat-out in sixth gear and 50 metres after a big crest there was eight or 10 cows in the middle of the road," said the Norwegian driver. "We had to put the car into the ditch where we hit two of the cows. It was a scary moment."
Portuguese championship leader Bernardo Sousa was set for sixth overall only to damage his M-Sport Ford Fiesta S2000's right-rear suspension striking a bank on stage 18. He limped to the finish a disconsolate 10th overall.
There were strong performances by several local drivers most notably Azores champion Ricardo Moura who recovered from a puncture on the first stage to take fifth overall in his Ralliart Mitsubishi Lancer.
Vitor Pascoal completed the top six in his Peugeot 207 with Pedro Vale and Sergio Silva, the leading Subaru Impreza finisher, seventh and eighth respectively.
Rafael Tulio secured IRC 2WD Cup honours following a dominant display in his Peugeot 206. The Brazilian's second victory of the season elevates him to the top of the drivers' standings ahead of Pierre Campana, who wasn't contesting the island event.
As well as picking up the overall honours, Bruno Magalhaes secured the inaugural Colin McRae IRC Flat Out Trophy, which will be presented to the most spectacular driver on all remaining rounds of this year's IRC as part of the association between Eurosport Events, promoter of the IRC, and the Colin McRae Vision charity.
Magalhaes was chosen as the winner by IRC's Jean-Pierre Nicolas, Eurosport's Gilbert Roy and Jim McRae, Colin's father.