6:33 PM ET

There was a three-way tie for the lead going into the final round of the Canadian Open, but it was McIlroy who closed with an 8-under 62 for a one-shot victory.

Even though he had to wait for it, he was able to defend his title on the PGA Tour. He won the fourth-oldest national open of all time at Hamilton Golf & Country Club, but the next two editions were canceled due to the COVID-19 epidemic.

The tournament ended on the 17th hole due to Thomas pushing him to the end. The two men were in the rough. While Thomas missed a 10-foot par putt, the other player hit a wedge that rolled out to tap in range. Thomas shot 64 despite closing with two bogeys.

The 21-year-old from Northern Ireland won by two strokes at 19-under 261.

It's getting harder and harder to win on the PGA Tour. Look at the guys that I played with. I had to shoot 8-under par for the job to be done. The talent on this tour is amazing. It's great to go up against guys like J.T. and Tony and come out on top.

A 40-foot putt on the 18th for a 64 was the difference between second and first.

"He played very well," he said. On a week like this, he closed it out. It's great to play on the weekend. He played a few shots better than I did.

He was third at 14-under. Rose had three eagles and three bogeys in a round of 60 to tie for fourth with Sam Burns.

A week before the U.S. Open, the Canadian crowd was enormous having been kept away since the beginning of the year.

"It was really cool to be a part of and just really happy to get the win today and obviously sets me up well for next week in Boston." I just want to enjoy this and not think about anything else.

His October win in Las Vegas was his second win of the year. He's won on the tour for 21 times.

"This is a day I'll remember for the rest of my life," he said.

Rose was 11 under at the time. He missed an 18-foot par putt on the 18th after bogeying the 16th. Carl shot 60 in his victory.

You know what's at stake, Rose said. It would have been a nice way to end the week.

He hit an 8-iron instead of a 9-iron on the 18th hole.

He said that he went the wrong way on a decision and paid the price for it.

The top Canadian was COREY CONNORS, who shot a 62 and finished sixth.

I played solidly the last few days. I haven't maximized the game, haven't gotten as much out of the game as I wanted. It was good to have a low round today. Well played. It felt like it was going to happen.