Spieth Again Takes Victory in Match Play

Jordan Spieth had another stress-free day in the WGC-Dell Match Play and avoided the drama that the 18th hole provided Thursday.

Spieth again built a big lead and lost only one hole in a 5 and 4 victory over Victor Dubuisson of France. He has played 30 holes in his two victories, and needs only to halve his match Friday against Justin Thomas to reach the round of 16 at Austin Country Club.

"When you're 3 up and you're striking the ball well on a windy day with a difficult golf course, it's difficult to come from behind," Spieth said.

Jason Day ended any suspense about his back injury -- first by showing up, then by hitting his opening drive to 12 feet on the 381-yard first hole. He was headed to a comfortable victory over Thongchai Jaidee, which puts him in the same position as Spieth.

For others, the 18th hole was pivotal.

Phil Mickelson was all square on the last hole when Daniel Berger drove left next to a rock structure that forms the 10th tee box. Berger struck the rocks before his club reached the ball. He dropped the club, grabbed his left wrist and looked over to Mickelson to concede the match.