Rory McIlroy stormed to victory at the Canadian Open with a superb closing round of 61, finishing eight shots clear of fellow Irishman Shane Lowry and Webb Simpson in Toronto.

McIlroy hit nine birdies, an eagle (17th) and two bogeys (16th and 18th) as he narrowly missed out on a sub-60 round but claimed his 16th PGA Tour title with a staggering final score of 22 under par.

FULL LEADERBOARD

Webb Simpson, who had started the day in a share of the lead, chipped in on the last for a 68 that tied him with Lowry (-15) - a shot that cost the Offaly man $150k. 

Lowry had four birdies and a single bogey in his round of 67.

Matt Kuchar, also a joint leader leaving the clubhouse, finished joint fourth with Brandt Snedeker (-13) after shooting 70. 

Graeme McDowell also secured his spot at The Open Championship at his home town of Portrush.

McDowell needed to finish in the top 10, and a tournament score of 10 under par saw him finish tied eighth overall alongside Danny Willett and Henrik Stenson.

"Obviously this is a huge tournament to win, I'm very proud of myself," McIlroy told CBS.

"But going forward for this season, to play the way I did in a final round like this, I'm going to take a lot from this and I'm excited for next week,"

"I said from the start I wanted to be aggressive. I played with so much freedom yesterday and I just wanted to keep that going today.

"Tied for the lead going out and playing with that freedom, it gives me so much confidence."