The record for the lowest 18-hole score in an official PGA Tour round is 59. This score has been posted six times in tour history. Here are the golfers who've shot 59 in a PGA Tour event:
Al Geiberger: 1977 Memphis Classic (29-30), Colonial Country Club (par 72)
Geiberger was the first to shoot 59 on the PGA Tour, and it happened in the second round. He went on to win the tournament, but his other three rounds were 72, 72 and 70. He is the only golfer in the modern era of the PGA Tour to win a tournament (outside of the majors) without a round in the 60s.
Chip Beck: 1991 Las Vegas Invitational (30-29), Sunrise Golf Club (par 72)
Beck's 59 happened in the third round. He finished tied for third place.
David Duval: 1999 Bob Hope Chrysler Classic (31-28), PGA West (Palmer Course) (par 72)
Duval's 59 was in the final round, and it included an eagle on the final hole. After beginning the final round seven shots off the lead, Duval's 59 and final-hole eagle gave him a 1-stroke victory.
Paul Goydos: 2010 John Deere Classic (31-28), TPC Deere Run (par 71)
Goydos' 59 happened in the second round, and he finished the tournament tied for second place.
Stuart Appleby: 2010 Greenbrier Classic (28-31), The Old White Course (par 70)
Appleby's 59 happened in the final round and he won the tournament by one stroke.
Jim Furyk: 2013 BMW Championship (31-28), Conway Farms Golf Club (par-71)
Furyk's 59 came in the second round. He finished in third place.
Geiberger, Duval and Appleby won the tournaments in which they shot 59; Beck, Goydos and Furyk did not.
Geiberger and Goydos shot their 59s under lift, clean and place conditions.
Geiberger, Beck and Duval's 59s were 13-under par scores; Goydos and Furyk were 12-under par; Appleby was 11-under par.
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