CARMEL, Ind. — U.S. Open champion Dustin Johnson ran off four birdies in his last five holes Saturday for a 4-under 68, giving him a three-shot lead going into the final round of the soggy BMW Championship.

Johnson couldn’t make any putts early. He couldn’t miss late.

His late run to seize control began with a 10-foot birdie putt on the 14th hole and ended with an 18-foot birdie on the 18th.

Paul Casey did his best to stay with him. Casey, coming off a runner-up finish on Labor Day at the TPC Boston, matched two of Johnson’s birdies during his late run until he had to scramble for pars on the last two holes. He still managed a bogey-free 68 and will be in the final group Sunday.

Johnson was at 18-under 198.

He will be going for his third victory of the year, which would move him to the top of the FedEx Cup standings going into the Tour Championship in two weeks and make him a heavy favorite to win PGA Tour player of the year award and the Vardon Trophy.

J.B. Holmes shot a 68 and was four shots behind. Holmes is making a compelling case to be a captain’s pick for the Ryder Cup; Davis Love III announces three of his selections on Monday. Holmes finished 10th in the U.S. standings.

Roberto Castro, who began the round tied for the lead, didn’t make a birdie in his round of 74 and fell six shots behind.

Johnson’s big finish after a rain delay left most of the field well behind.

Adam Scott finally got some putts to drop, and with birdies on the last two holes, he shot a 67 and joined Matt Kuchar (68) at 11-under 205.

But they finished before Johnson was done making birdies, and wound up seven shots behind.

“I’m certainly a long shot. I’m a long way back of the leaders and some great names on the leaderboard,” Kuchar said. “But I (have) a chance, and golf on Sunday is fun when you have a chance.”

Jordan Spieth closed with two straight bogeys for a 68 and was 10 shots behind, and his attention turned to a strong finish, with hopes of getting one of the top five seeds going into the Tour Championship. Anyone in the top five is assured of the FedEx Cup title and its $10 million bonus if they win the Tour Championship.

EUROPEAN TOUR: Scott Hend picked up four shots in his last five holes to move to 14 under and take a one-shot lead into the final round of the KLM Open in Spijk, Netherlands.

The Australian eagled the par-5 15th and birdied the last hole, while Italy’s Nino Bertasio had a double-bogey seven on the 18th to slip to second place at 13 under.