It was a crowded leaderboard on the final day of the PGA championship, but one birdie shot out of 14 gave Collin Morikawa an advantage he would keep for the stretch, finishing 13 under with a final round 64 and his first championship win. At 23, he becomes the youngest player to break 65 in the final round of a big win ever, and joins Rory McIlroy, Tiger Woods and Jack Nicklaus as the youngest PGA championship winners, all at 23.
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