Olesen had played himself into contention with the lowest round in tournament history, with nine birdies and an eagle for an 11-under 61. It was the lowest round of his European Tour career and it gave the Dane a three-shot lead before the final group had even teed off.

“I was just trying to go out there and build on my game, see if I could shoot a low score,” Olesen said. “Obviously as the round progressed I kept on thinking birdies and trying to make the round better. Finishing with four birdies was pretty nice.”

Wallace turned in 34 but then made five birdies in seven holes from the turn to edge a shot past Olesen. He waited as Kaymer and Korhonen went close with rounds of 68 and 67, respectively.

England’s Aaron Rai and Denmark’s Lucas Bjerregaard finished joint-fifth with rounds of 69.