Well-traveled American Brooks Koepka used an eagle-three at the 15th hole to jump ahead of a crowded leaderboard and win the Waste Management Phoenix Open by one stroke on Sunday for his first PGA Tour victory. The 24-year-old Koepka, who broke into professional golf in Europe, rolled in a 51-foot putt from the fringe short of the green at the par-five 15th to vault over four players. Koepka, ranked 33rd in the world, carded a five-under-par 66 for a total of 15-under-par 269, one better than Masters champion Bubba Watson (65), 22-year-old Japanese Hideki Matsuyama (67) and American Ryan Palmer (66). "It feels amazing," said Floridian Koepka. "The last few weeks I put in a lot of hard work, changed my putting stroke completely and everything seems to be going right." Scotsman Martin Laird, the 54-hole leader, was tied with Koepka until he bogeyed the driveable par-four 17th with his first three-putt after going 95 consecutive holes without one. Laird then found water with his drive at 18 and took a double-bogey to register a 72 for 12-under, a total shared by Spanish amateur and Arizona State student Jon Rahm, who closed with a 68. The self-assured Koepka, who claimed his first European Tour victory at the Turkish Airlines event in November after winning four times on the European Challenge Tour, began the round three shots behind Laird.