Q: Passage: Martin Kaymer won his first major championship in a three-hole playoff over Bubba Watson. It was the second PGA Championship in six years at Whistling Straits, the first in 2004 was won by Vijay Singh, also in a playoff.

Question: Based on this passage, pga championship in 2010. who won the title then?
Let's give stream of consciousness below
To answer the above question, the relevant sentence is: Martin Kaymer won his first major championship in a three-hole playoff over Bubba Watson. So the answer is Martin Kaymer.