Four-time major victor Rory McIlroy.
Lexi Thompson has won the latest LPGA event by one shot in New Jersey.
Meanwhile, US PGA Championship victor and reigning U.S. Open champion Brooks Koepka is 11 shots off the pace following a two-over-par 72.
"Obviously very proud to have got one of the Open Championship spots and get that little monkey off my back and let me go and play some golf the next few weeks", said McDowell, who now gets to play at his hometown course at Royal Portrush Golf Club in Northern Ireland July 18-21.
"To start the day tied for the lead, and to play like that, it gives me a lot of confidence", he said.
But nothing says "Canada Eh" more than "The Rink", which this year is the 218-yard par three 13th hole that has been made into a hockey shrine and fan fun zone. "It's nearly like you're out of your own body and looking at yourself play".
Rory McIlroy added the Canadian Open to his schedule as a tune-up for next week's U.S. Open at Pebble Beach.
A victor of five national opens across the PGA and European Tour, the 30-year-old is making his first appearance at Canada's national open and complimented the atmosphere set-up.
On top of the USA (2011) and British (2014) Opens, McIlroy has also won the Australian (2013) and Irish Opens (2016). Now he has a chance to add another national championship to his already impressive tally.
"To play off that some people might have thought the idea was campy (over the top) but it has just been absolutely embraced by the fans and spectators".
"I think it's my putting". He made four straight birdies from Nos. Pettersson did it at St. George's Golf and Country Club in Toronto at 2010 en route to a victory.
But he found the bunker on the right of the green. He had one blemish at the par-4 7th but otherwise finished with eight birdies to go 7-under 63.
Taylor, Hadwin and Hughes have already won on the PGA Tour, and there's no reason they can't do it here, while Silverman was a victor on the Web.com Tour.
Hadwin, Hughes, Silverman and Taylor were all within four shots of the leaders after two rounds. Had a great up and down on 16 and realized, oh, gosh I got a chance the last two.
"It stings a little bit", said Hughes.
Simpson (68) fell into a tie for second with Shane Lowry (67).
"It had 12 feet of break on it". "Man, that guy can putt", he said. "I've always had an appreciation for other athletes and it's one of my favourite things to do is to go and watch other sporting events and see how other athletes handle their situations and pressures".
This year's Open will be the first in Northern Ireland since its only previous visit to Royal Portrush in 1951. A 20-foot birdie putt dropped at the fifth...
Ally McDonald was third, three shots back.
"A couple of loose shots down the stretch but I was chasing it, trying to make birdies, and sometimes you're going to make mistakes when you do that".
McCarron, finished at 13-under 203 as he won for the third time this year.