AUSTIN, Texas — Dustin Johnson and Phil Mickelson showed the simple side to the Dell Technologies Match Play. For three straight days in warmth, wind or rain, they built early leads and never let anyone get close to them in advancing out of their groups to the knockout stage.

Bill Haas delivered another amazing escape when he chipped in from 120 feet to save par and extend a sudden-death playoff that he eventually won in six holes.

Marc Leishman made it to the round of 16 by playing two holes on Friday. He was awarded a victory because Jason Day withdrew on Wednesday, got a reprieve when Lee Westwood beat Pat Perez to force a three-man playoff, and beat Westwood on the second hole with a 12-foot birdie.

Johnson, the No. 1 seed going for his third straight PGA Tour victory, won, 5 and 3, and goes into the weekend having led after all 46 holes he has played this week.