Bubba Watson will head to Augusta National as a strong contender for a third Masters title after thrashing Kevin Kisner 7&6 to win the WGC-Dell Technologies Match Play.

After preventing Justin Thomas becoming world number one with a 3&2 victory over the US PGA champion in the semi-finals, Watson took ruthless advantage of a poor performance from Kisner to cruise to a second World Golf Championships title.

Kisner looked to be feeling the effects of needing 19 holes to beat Alex Noren in the other semi-final and bogeyed four holes in succession at Austin Country Club after Watson won the first with a birdie.

It took Watson missing from four feet for birdie on the sixth to stop the rot and until the 11th for Kisner to win a hole with a long-range birdie, but Watson's birdie on the par-five 12th secured a comprehensive success.

Kisner, the 32nd seed, seemed to run out of steam after going 19 holes in his morning semi-final against Alex Noren of Sweden.

He played poorly in the final and handed Watson several holes. "It was just one of those deals," said Kisner. "I guess I need to figure out what happened this afternoon and work on that."

Watson had time for a leisurely lunch after beating American second seed Justin Thomas 3&2 in the other morning semi-final.

After playing brilliantly for most of the week, Thomas was slightly off his game, hitting a series of shots that were surprisingly poor by his own high standards.

The result cost Thomas the world number one ranking.

Watson was seeded 35th for the Match Play despite his recent return to form highlighted by a victory at the Los Angeles tour stop at Riviera in February.

His relatively low ranking is due primarily to last year's mediocre form that caused him to plummet down the list.