Canadian Mackenzie Hughes is off to quite the start at Royal St. Georges.

The Dundas, Ont., native is two shots off the lead at The Open Championship after shooting a 4-under 66 Thursday morning. 

Hughes opened with three straight pars and then strung together three consecutive birdies on holes four through six. He began the back nine with birdies on No. 10 and No. 12, getting him to five below par. He then made his first bogey of the day with a three-putt on the par 4 15th, dropping him to 4-under, while Louis Oosthuizen moved into the outright lead at 6-under.

Hughes then steadied himself after the bogey with pars on 16, 17 and 18 to end his opening round while Oosthuizen closed at 6-under.

The 64th-ranked golfer in the world, Hughes took a 54-hole lead into the final round of the U.S. Open at Torrey Pines last month but struggled with a 6-over (77) Sunday to finish in a four-way tie for 15th. 

Adam Hadwin (4-over through eight), Corey Conners (1-under through six) and Richard T. Lee (even through four) round out the Canadian portion of the field at The Open Championship.