The first round of the RBC Canadian Open is in the books, and it couldn't have gone better. Cristobal del Solar and Thorbjorn Olesen went really low on the score to set a new first-round record for the event.The Chilean and the Norwegian are tied for first place after 18 holes at 9-under 61. This not only sets a new record for the first round, but also puts them just one stroke shy of the event all-time record set by Carl Petterson in 2010 and later tied by Justin Rose in 2022, both at St. George's."I was just trying to hit good shots." Del Solar said. "I was just trying to stay in the present and have fun. That's what I was trying to do...I just want to go and execute each shot.""I think everyone kind of sometimes gets ahead themselves and thinking of the result or whatever. You just want to go out and just hit the golf shots."Olesen, for his part, said that the secret to his success during the round was one specific aspect of his game:"Obviously, I played great, but my putting was exceptional today," He said. "Don't think I missed any putts really out there. I definitely holed some long ones as well. It was nice to see everything go in."The Norwegian player carded an eagle, eight birdies, and one bogey, while the Chilean player carded ten birdies and one bogey.Del Solar was really close to achieving a sub-60 round for the second time in a year and a half, as he played bogey-free until the 16th hole, but ultimately bogeyed the 17th and parred the 18th, to finish at 61.As you may recall, Del Solar shot a 57 in the Astara Golf Championship on the Korn Ferry Tour, which took place at the Country Club de Bogotá-Pacora in Colombia. This is the lowest score ever recorded in a tournament under the PGA Tour umbrella.It is also the lowest score ever recorded in professional golf, tying the record set by Irishman David Carey at the 2019 Cervino Open on the Alps Tour, played at the Cervino Golf Club in Breuil-Cervinia, Italy.As for the RBC Canadian Open, 118 players posted scores of par or better. Missing from that huge group was the top-ranked golfer in the field, Rory McIlroy, who carded three birdies and four bogeys for a 1-over 71.The Northern Irishman is in serious danger of missing the cut. If so, it would be his first since last July, when he missed the cut at the Open Championship.More Golf: PGA Tour Rookie Honored by UNC Legends, and Hilariously Bill Belichick