Rory McIlroy carded a flawless 65 to share a one-stroke lead with American Brian Harman after the first round of the BMW Championship in Chicago.
The Northern Irishman picked up five birdies without dropping a shot, while Harman split six birdies with a bogey on the par four 12th.
The pair lead by one from a six-strong chasing pack which includes England's Matt Fitzpatrick.
The 28-year-old dropped shots at the start and end of his opening round, but birdied six of nine holes around the turn.
Seamus Power had a disappointing opening day; he's six-over after shooting a 76 that included five bogeys and a double bogey on 17.
Just @McIlroyRory things ¯\_(ツ)_/¯ pic.twitter.com/3urMrnj7IM
— PGA TOUR (@PGATOUR) August 17, 2023
Meanwhile, Patrick Cantlay has some improving to do if he is to be successful in his bid for a third straight victory in the BMW Championship.
The American carded a two-under 68 on Thursday to sit equal 12th.
