The 2003 Open Championship was a men's major golf championship and the 132nd Open Championship, held from 17 to 20 July at Royal St George's Golf Club in Sandwich, England. Ben Curtis won his only major title, one stroke ahead of runners-up Thomas Bjørn and Vijay Singh. Bjørn had led in the final round by two shots with three holes to play, but needed three attempts to play out of a greenside bunker on the 16th hole. Playing in his first major championship and number 396 in the world rankings, Curtis became the first debut winner at The Open since Tom Watson in 1975.

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Lengths of the course for previous Opens (since 1950):

Stuart Appleby (4), Thomas Bjørn (4,5,18), Steve Elkington, Ernie Els (2,3,4,5,10,14), Gary Evans, Sergio García (4,5,14,18), Retief Goosen (4,5,10,14), Søren Hansen (5), Pádraig Harrington (4,5,18), Justin Leonard (2,3,4,14), Thomas Levet, Peter Lonard (4,22), Davis Love III (4,13,18), Shigeki Maruyama (4,14), Peter O'Malley (22), Nick Price (2,3,4,14)

John Daly (3), David Duval (3,18), Paul Lawrie (3,4,5), Tom Lehman (3), Greg Norman (3), Mark O'Meara (3), Tiger Woods (3,4,10,11,12,13,14,18)

Mark Calcavecchia (18), Nick Faldo, Sandy Lyle, Tom Watson

Robert Allenby (14), Rich Beem (12,14), Ángel Cabrera (5), Michael Campbell (5), Paul Casey, K. J. Choi (14), Darren Clarke (18), Fred Couples, Chris DiMarco (14), Bob Estes, Niclas Fasth (5,18), Brad Faxon, Steve Flesch, Fred Funk (14), Jim Furyk (10,14,18), Jay Haas, Charles Howell III (14), Trevor Immelman (5,24), Jerry Kelly (14), Bernhard Langer (5,18), Len Mattiace (14), Phil Mickelson (14,18), Colin Montgomerie (5,6,18), Craig Parry (22), Kenny Perry, Chris Riley, Eduardo Romero (5), Justin Rose (5), Adam Scott (5), Vijay Singh (11,12,14), Jeff Sluman (14), David Toms (12,14,18), Scott Verplank (18), Mike Weir (11)

Bradley Dredge, Anders Hansen (6), Stephen Leaney, José María Olazábal (11)