2018 AT&T Byron Nelson Preview Dates: May 14-20, 2018 Where: Trinity Forest Golf Club Par/Yards: 36-35—71/7,380 Format: 72-hole stroke play; Field: 156 FedExCup: 500 points to winner; Purse: $7.7 million ($1,386,000 to the winner) Defending Champion: Billy Horschel