Emiliano Grillo had not won on the PGA Tour since October 2015 at the Frys.com Open (now known as the Fortinet Championship). He had come into last week with some solid form (two top-7s in his four lead-in starts) and two top-10s at Colonial in the last five years.

Last weekend, Jason Day got back into the winner's circle for the first time in five years and eight days since his last victory (2018 Wells Fargo Championship). Day, priced at 18-1 pre-tournament, shot a 9-under final round of 62 to win the AT&T Byron Nelson by one stroke over Austin Eckroat and Si Woo Kim.