Spieth, 31, shot a final-round 62 to finish tied for third at the CJ Cup and spark belief that his game is rounding into form.

Scheffler is currently the No. 1-ranked golfer in the world, and he leads The Byron Nelson by nine strokes on the back nine of the final round. He's 30 under par for the tournament, while Spieth finished Sunday with a nine-under-par 62 and sits in third place for the weekend at 19 under.

It has been eight years since Jordan Spieth has won a major tournament and three years since he has won an event of any type, but that hasn't deterred bettors who believe the 31-year-old is primed to complete the career grand slam this week.