(Reuters) - Canadian Mackenzie Hughes fired an error free 10-under 60 to grab the early first-round lead by moving three shots clear of world number one Rory McIlroy at the Travelers Championship in Cromwell, Connecticut, on Thursday.
Playing the back nine first at the TPC River Highlands, Hughes was in blistering form as he strung together a run of five straight birdies from the 14th on his outward nine and picked up four more after the turn.
He had a long look at a magical 59 but left a 41-foot birdie putt short at his last.
"I've shot 61 twice in competition, once at Sea Island and once at a mini-Tour event," Hughes told reporters. "Both times there was an outside chance the last few holes to shoot 59.
"Kind of similar deal to today where I kind of needed to birdie the last few holes."
Also a back nine starter, McIlroy got off to a flying start by rolling in an 11-foot putt for an eagle on the par five 13th and then followed up with birdies at 14 and 15 to quickly get to four-under.
The Northern Irishman's only miscue was a bogey at 16 but he was error free the rest of the way, piling on four more birdies after the turn for a seven-under 63.
Golfers appeared to be taking heed and paying closer attention to COVID-19 safety protocols after PGA Tour Commissioner Jay Monahan issued a stern warning on Wednesday following the withdrawal of several players.
(Reporting by Steve Keating in Toronto; Editing by Ken Ferris)