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Kaymer delighted with performances

Martin Kaymer is making no predictions about staying as golf's world No1 for months or years.

The 26-year-old, who took over from Lee Westwood at the top by reaching the final of the WGC-Accenture Match Play a fortnight ago, said: "Obviously I'm very happy with my performance so far.

"I'm number one in the world for at least two weeks. Hopefully if I keep playing the way I do then another week. And then we'll see."