What is the biggest final-round collapse in golf history?

Sunday at a major has ended more careers' worth of confidence than it has made. These are the rounds nobody involved wants replayed.

1. 1
   Greg Norman at the 1996 Masters

   Led by six shots on Sunday morning and lost by five to Nick Faldo.
2. 2
   Jean van de Velde at the 1999 Open

   Needed a double bogey on the last to win and made a triple, then lost the playoff.
3. 3
   Rory McIlroy at the 2011 Masters

   Led by four after 54 holes and shot an eight-over 80, finishing tied 15th.
4. 4
   Arnold Palmer at the 1966 US Open

   Led by seven with nine holes to play and lost the playoff to Billy Casper.
5. 5
   Jordan Spieth at the 2016 Masters

   Led by five through nine holes on Sunday, then made a quadruple bogey at the 12th.
6. 6
   Phil Mickelson at the 2006 US Open

   Needed a par at the last at Winged Foot and made double bogey.
7. 7
   Adam Scott at the 2012 Open

   Led by four with four to play at Lytham and bogeyed every one of them.
8. 8
   Rory McIlroy at the 2024 US Open

   Led by two with four holes left at Pinehurst and bogeyed three of them.
9. 9
   Doug Sanders at the 1970 Open

   Missed a short putt on the 18th at St Andrews and lost the playoff to Jack Nicklaus.