Walker's round came on the more challenging South Course at Torrey Pines, with the 29-year-old from Florida carding seven birdies in a bogey-free round. "Was really just trying to hit the middle ...

Course: Torrey Pines (South). Yardage: 7,765. Par: 72. Prize money: $20 million. Winner's share: $4 million. Television: Thursday-Friday, 4-8 p.m. (Golf Channel ...