OAKVILLE, Ontario — Dustin Johnson made a 10-foot eagle putt on the par-5 18th hole Thursday for a 6-under 66 and a share of the Canadian Open lead with Luke List.

“My game feels good,” Johnson said. “I’ve got a lot of confidence in it. I feel like I’m swinging really well. I felt like I rolled the ball really nicely with the putter today. I’m definitely driving the ball nicely. I’ve got a lot of confidence in the driver.”

The U.S. Open champion set up the eagle with a 364-yard drive and 150-yard approach. In windy conditions at sun-baked Glen Abbey, he also had seven birdies and drove into the water on the par-4 14th en route to a double bogey.

“I drove it in the fairway a bunch. That was definitely very helpful,” Johnson said. “The conditions were tough. The wind was blowing pretty hard. I felt like I played really well. I just made one bad swing on 14, just didn’t quite commit to the shot I was hitting. Then I got a little unlucky for it to go in the water there. But other than that, I thought I played really, really nicely all day long.”

He played the three back-nine par-5 holes in 4 under.

“I like this golf course,” said Johnson, ranked second in the world. “I think it sets up well for me. I like it off the tee. The conditions are really tough right now. The greens are really firm, but they are rolling really nicely. So if you get some good looks at it, you can hole some putts.”

List birdied all four par 5s in a round he closed with seven pars.

“I was happy with that,” List said, “With my length, I tried to get it in play off the tee and have a smart iron into the par 5s. If I can play them 4 under every day all week, that would be great. ... The rough is down this year, which makes for if you’re hitting your driver relatively straight, you can take advantage of it and get some wedges out there.”

Canadian amateur Jared du Toit was a stroke back along with former Arizona State teammate Jon Rahm, Chesson Hadley and Kelly Kraft.