Denmark's Thomas Bjorn won the Qatar Masters Sunday, beating Spain's Alvaro Quiros by four shots.
Overnight leader Bjorn, who won his first tournament since the Estoril Open in Portugal last year, shot a bogey-free, 3-under 69 for a tournament total of 14-under 274. The 39-year-old Dane had three birdies in the final round, including one on the 18th.
Quiros, who closed within two shots of the lead with a birdie on the 14th, faltered at the end. He bogeyed two of the final four holes, including a three-putt on 15. Quiros' compatriot Rafael Cabrera-Bello and Markus Brier of Austria, who held the lead after the second round, finished another shot back.
Second-ranked Martin Kaymer, who needed to finish at least second to overtake Lee Westwood as top-ranked player, shot a 1-under 71 to finish 2 under for the tournament in a tie for 28th.