After breaking through with his first PGA Tour win at June's Travelers Championship, Hunter Mahan could have cruised through the rest of 2007. Instead, the 25-year-old has kept giving it the gas, claiming three more top-10s, including a T-6 at the British Open with his third straight closing-round 65. The former college player of the year at Oklahoma State also has some experience at Southern Hills, winning the 2003 Big 12 title there by 13 shots.