Bryson DeChambeau turned in a spectacular second round at the BWM Championship, shooting a career-best 60 Friday to rocket to the top of the leaderboard. 

DeChambeau carded a pair of eagles and eight birdies in a flawless round at Caves Valley Golf Club near Baltimore, Maryland, leaving him 16 under par for the tournament. 

Play was suspended due to darkness with 15 players still on the course, including first-round leader Jon Rahm. The second round of the FedEx Cup play-off event will conclude Saturday morning before the third round begins. 

Through the 15 holes he completed Friday, Rahm was one stroke back of DeChambeau at 15 under. Earlier in the day, Patrick Cantlay finished his round at 15 under after shooting 63. 

Sergio Garcia (67) and Im Sung-jae (65) were four back of DeChambeau at 12 under, while Hudson Swafford (66) was in at 11 under along with Sam Burns, who had one hole left to play. 

Rory McIlroy (70) was at 10 under with Abraham Ancer, who was four under for the round through 16 holes. 

The story of the day, though, was DeChambeau's run at a 59, which he said entered his mind after his eagle at 16.

He had putts for birdie at 17 and 18 but could not convert, saying his simply misread the six-foot putt on the last. 

Despite coming so close to the magic number, the American did not lament the final miss. 

"It's just one shot," he said. "There's plenty of holes where I could have made a birdie somewhere else not making it, I still executed a good putt, just didn't break the way I wanted it to. That's all I could ask for."

DeChambeau's previous low round was 62 at the Shriners Hospitals for Children Open last October and he was pleased to play as well as he did Friday. 

“It was an awesome opportunity," he said. "I had a couple birdie opportunities at 17 and 18, and it didn't happen but I’m still really proud of the way I handled myself, and it's great to feel some pressure again which is awesome.

“A lot of putts went in. A lot of things went right. We got a lot of great numbers out of the rough today, and I played my butt off and never thought too much about anything until the last few holes."

Elsewhere in the 69-man field, Olympic gold medallist Xander Schauffele (68) was at nine under, one shot better than Masters champion Hideki Matsuyama (69). 

Three-time tournament winner Dustin Johnson (70) was at seven under along with Brooks Koepka (67). 

Among those well back of the lead were Jordan Spieth (70) and Lee Westwood (70) at three under. Phil Mickelson was there, too, after completing just 13 holes Friday. 

Open Championship winner Collin Morikawa brought up the rear at three over for the tournament following a 75 that saw him card three bogeys and no birdies.