Pan, who was not interviewed all week, played a brilliant final round in breezy conditions, using a sporty game from short range and a solid putter to fire a final-round 67 to nip Patrick Cantlay and Matt Kuchar by one.
Brooks Koepka won his second Major of the season and third of his career by combining the kind of solid ball striking with good in-close putting to win by two over Tiger Woods at Bellerive Country Club.