OWINGS MILLS, Md. — Robert MacIntyre was up to the test of facing the No. 1 player in the world Saturday, holing a collection of big par putts and then delivering a 40-foot birdie on the final hole for a 2-under 68 and a four-shot lead over Scottie Scheffler in the BMW Championship.

Robert MacIntyre could only applaud from the scoring room when J.J. Spaun wrapped up the U.S. Open with his epic putt at Oakmont two months ago. When Scottie Scheffler sank an even longer chip Sunday to take control of the BMW Championship,