Justin Thomas capped off another stellar day in Honolulu with an eagle putt on the par-5 18th, finishing with a 64 and setting the PGA Tour's 36-hole scoring record at 123.
Sparked by a holed bunker shot for birdie on his ninth hole of the day, Jordan Spieth surged into contention Friday at the PGA Championship.
Rory McIlroy was on site Saturday morning at Whistling Straits, suggesting he will attempt to return at the PGA Championship from a serious ankle injury suffered on July 4.
The difference between practice and the bright lights inside the ropes seemed miles apart for Tiger Woods on Thursday, who talked positively about his game heading into the Waste Management Phoenix Open but showed there is plenty of work ahead.