SCOTTSDALE, Ariz. — Bill Haas’ 9-iron landed to the right of the pin and spun left, settling 3 feet away for a birdie on the par-3 16th in the Waste Management Phoenix Open.

“I just tried to play the hole like I would any other hole, even though it’s not like any other hole,” Haas said about the stadium hole that was packed with 20,000 fans on the warm Thursday afternoon.

Haas shot a 7-under 64 at TPC Scottsdale to take a two-stroke lead. The birdie on 16 capped a five-hole stretch he played in 5 under, with birdies on Nos. 12 and 13 and a 20-footer for eagle on the par-5 15th.

“Once you get a cushion like that, you can free your swing up a little bit,” Haas said.

The 16th, playing 151 yards to a front pin, tripped up Rickie Fowler and Justin Thomas. Fowler bogeyed it in a 66 that left him tied with Billy Horschel, Bryson DeChambeau, Chris Kirk and Chesson Hadley. Thomas made a double bogey in a 68.

Fowler hit short into the right bunker and two-putted from 30 feet. The fans let him hear it, too — at 9:30 a.m. with only the general-admission sections full.

“I may be somewhat of a fan favorite, but they weren’t holding back,” Fowler said. “I was a little disappointed in some of the stuff that was said.”

Coming off three straight birdies to tie for the lead, Thomas hit a wedge in the front left bunker, blasted across the green and three-putted from the fringe.

“I just barely caught it heavy, but I thought it was at least going to cover the front, and there was just no sand in the bunker,” Thomas said.

He bogeyed the par-4 17th after chipping into the water, and then was angered when a woman screamed while Jordan Spieth was teeing off on 18.