Even with so few people around, Jon Rahm could hear from the other side of the Olympia Fields clubhouse that Dustin Johnson had made a 45-foot birdie on the final hole to force a playoff on Sunday in the BMW Championship. Resilient as ever, Rahm went out and made some magic of his own. From one end of the 18th green to the other, Rahm's putt from just over 65 feet rolled down the ridge and into the cup, setting off a roar so loud it nearly made up for not having spectators. He tore through the back nine Sunday on his way to a 6-under 64, the lowest round of the week, to finish at 4-under 276. Johnson birdied three of his opening four holes to open a three-shot lead, dropped a pair of shots around the turn and then delivered in the clutch with his 45-foot birdie putt on the last hole for a 67. It was only good enough to stay at No. 1 by a slim margin.