Defending champion Jason Day was also rewarded for his aggressive approach with a 69
World number two Dustin Johnson eagled the final hole to earn a share of the lead with fellow American Luke List after the first round at the RBC Canadian Open on Thursday.
Johnson sank a 12-foot putt at the par-five 18th to cap a roller-coaster afternoon round that also included seven birdies, a bogey and double-bogey at sun-baked Glen Abbey Golf Club outside Toronto. Defending champion Jason Day was also rewarded for his aggressive approach with a 69. Day used his driver liberally and collected four birdies, along with a chip-in eagle.
Leaders Johnson and List headed fellow Americans Kelly Kraft and Chesson Hadley, Spain's Jon Rahm and Canadian amateur Jared du Toit by one shot. List, ranked 309th in the world, compiled his six birdies with a minimum of fuss, picking up a stroke at each of the four par-five holes.
Du Toit, meanwhile, found himself in lofty company after a round that included an unlikely eagle from 154 yards from a fairway bunker at the par-four 17th. The 21-year-old from British Columbia is currently a college golfer at Arizona State, and would be the first Canadian to win his national open since 1954.