Bryson DeChambeau survived a double bogey en route to posting the low score of the tournament through two rounds at the Hero World Challenge.

First round joint leader Rory McIlroy carded a second round 71 to drop four shots behind DeChambeau, in a tie for eighth place on seven under.

The 28-year-old DeChambeau fired an 8-under 64 to move to 11-under for the tournament at Albany Golf Course in the Bahamas, rebounding from an opening round of 69 and taking a one-shot lead at the Tiger Woods-hosted event over world number two Collin Morikawa (66), Tony Finau (66) and Brooks Koepka (67).

The eight-time Tour winner got off to a solid start with a birdie at the first and carded three more before making the turn.

DeChambeau proceeded to reel off five more over his first six holes on the back before the "hiccup" at the 16th, where he found the waste area bushes left of the fairway and made double.

"Just keep playing golf. Nothing more," DeChambeau said, regarding his mindset after the setback.

"Frustrated obviously but nothing I could do. I pulled the drive. It went into a bush. Had to move on."

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Although the Hero is not considered an official PGA Tour event and does not award FedExCup points, it does award Official World Golf Rankings points and marks DeChambeau's first start in the new season.

He's made two previous appearances in the limited-field, invitational event, finishing tied for 12th in the autumn of 2018 and placing 15th in 2019. The event was not held last year due to the pandemic.

World rankings points are particularly precious for Morikawa, who has a chance to take over the top spot from Spain's Jon Rahm.

"I'm going to keep saying it, that I just have to focus on trying to win this week and if it does, I know it's going to happen," said Morikawa, whose 66 Friday included six birdies, two bogeys and an eagle.