Martin Kaymer has birdied eight of his last 11 holes, including six of eight on the back nine, to take a one-shot lead over Fredrik Jacobson late in the final round of the World Golf Championships-HSBC Champions. Kaymer entered Sunday's final round five shots behind leader Fredrik Jacobson but has posted eight birdies and no bogeys through 17 holes. Jacobson shot an even-par 36 on the front nine but has two birdies on the back nine with two holes remaining. Currently in third, three shots behind Kaymer, is Graeme McDowell. Charl Schwartzel, the current clubhouse leader, is four back at 15 under.