His father wouldn't let him use a tee.
Kaymer's father, Horst, was cut from the Earl Woods cloth, not only teaching his two boys golf, but going to extreme measures to prepare them for the rigors of tournament play. At their home course, Mettmann Golf Club in Dusseldorf, Horst forced his boys to play from the tips even at a young age, and even forbade them from hitting off a tee. "He wanted to make it more challenging for us, so when we were allowed to use tees in tournaments, hitting the driver would seem easy," Martin told Sports Illustrated's Alan Shipnuck in 2010. If Kaymer's driving at Pinehurst was any indication, Horst was on to something. -- Sam WeinmanRoss Kinnaird/Getty Images