<Li> Woods has hit a combined total eighteen holes - in - one in the course of his lifetime--his first at the age of six . Three have come in PGA Tour competition, at the 1996 Greater Milwaukee Open, 1997 Phoenix Open, and 1998 Sprint International . </Li> <Li> Woods is the only professional golfer to win four majors in a row . </Li> <Table> <Tr> <Th> Year </Th> <Th> Championship </Th> <Th> 54 holes </Th> <Th> Winning score </Th> <Th> Margin </Th> <Th> Runner (s) - up </Th> </Tr> <Tr> <Td> 1997 </Td> <Td> Masters Tournament </Td> <Td> 9 shot lead </Td> <Td> − 18 (70 - 66 - 65 - 69 = 270) </Td> <Td> 12 strokes </Td> <Td> Tom Kite </Td> </Tr> <Tr> <Td> 1999 </Td> <Td> PGA Championship </Td> <Td> Tied for lead </Td> <Td> − 11 (70 - 67 - 68 - 72 = 277) </Td> <Td> 1 stroke </Td> <Td> Sergio García </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> U.S. Open </Td> <Td> 10 shot lead </Td> <Td> − 12 (65 - 69 - 71 - 67 = 272) </Td> <Td> 15 strokes </Td> <Td> Ernie Els, Miguel Ángel Jiménez </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> The Open Championship </Td> <Td> 6 shot lead </Td> <Td> − 19 (67 - 66 - 67 - 69 = 269) </Td> <Td> 8 strokes </Td> <Td> Thomas Bjørn, Ernie Els </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> PGA Championship (2) </Td> <Td> 1 shot lead </Td> <Td> − 18 (66 - 67 - 70 - 67 = 270) </Td> <Td> Playoff </Td> <Td> Bob May </Td> </Tr> <Tr> <Td> 2001 </Td> <Td> Masters Tournament (2) </Td> <Td> 1 shot lead </Td> <Td> − 16 (70 - 66 - 68 - 68 = 272) </Td> <Td> 2 strokes </Td> <Td> David Duval </Td> </Tr> <Tr> <Td> 2002 </Td> <Td> Masters Tournament (3) </Td> <Td> Tied for lead </Td> <Td> − 12 (70 - 69 - 66 - 71 = 276) </Td> <Td> 3 strokes </Td> <Td> Retief Goosen </Td> </Tr> <Tr> <Td> 2002 </Td> <Td> U.S. Open (2) </Td> <Td> 4 shot lead </Td> <Td> − 3 (67 - 68 - 70 - 72 = 277) </Td> <Td> 3 strokes </Td> <Td> Phil Mickelson </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> Masters Tournament (4) </Td> <Td> 3 shot lead </Td> <Td> − 12 (74 - 66 - 65 - 71 = 276) </Td> <Td> Playoff </Td> <Td> Chris DiMarco </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> The Open Championship (2) </Td> <Td> 2 shot lead </Td> <Td> − 14 (66 - 67 - 71 - 70 = 274) </Td> <Td> 5 strokes </Td> <Td> Colin Montgomerie </Td> </Tr> <Tr> <Td> 2006 </Td> <Td> The Open Championship (3) </Td> <Td> 1 shot lead </Td> <Td> − 18 (67 - 65 - 71 - 67 = 270) </Td> <Td> 2 strokes </Td> <Td> Chris DiMarco </Td> </Tr> <Tr> <Td> 2006 </Td> <Td> PGA Championship (3) </Td> <Td> Tied for lead </Td> <Td> − 18 (69 - 68 - 65 - 68 = 270) </Td> <Td> 5 strokes </Td> <Td> Shaun Micheel </Td> </Tr> <Tr> <Td> 2007 </Td> <Td> PGA Championship (4) </Td> <Td> 3 shot lead </Td> <Td> − 8 (71 - 63 - 69 - 69 = 272) </Td> <Td> 2 strokes </Td> <Td> Woody Austin </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> U.S. Open (3) </Td> <Td> 1 shot lead </Td> <Td> − 1 (72 - 68 - 70 - 73 = 283) </Td> <Td> Playoff </Td> <Td> Rocco Mediate </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Championship </Th> <Th> 54 holes </Th> <Th> Winning score </Th> <Th> Margin </Th> <Th> Runner (s) - up </Th> </Tr>

How many times has tiger woods won the open