The 1991 Masters Tournament was the 55th Masters Tournament held April 11–14 at Augusta National Golf Club in Augusta, Georgia. Ian Woosnam won his only major title, one stroke ahead of runner-up José María Olazábal. Woosnam, Olazábal, and two-time champion Tom Watson, age 41, were all tied at −11 going into the 72nd hole. Olazábal, a group ahead of the final pairing of Woosnam and Watson, went from fairway bunker to greenside bunker and failed to hole a 45 ft par putt. Watson, who had eagled both 13 and 15, missed the fairway right with his tee shot and then hit his second shot into a greenside bunker. He chipped out and three-putted for a double bogey. Woosnam then holed an 8 ft par putt for the green jacket. It was the fourth consecutive year that the Masters champion was from the United Kingdom, which had no winners prior to Sandy Lyle's victory in 1988. Through 2017, Woosnam is the only winner at Augusta from Wales. Olazábal later won two Masters, in 1994 and 1999. Phil Mickelson, a 20-year-old junior at Arizona State, was the low amateur at 290 (+2) and tied for 46th place.

Field

Tommy Aaron, George Archer, Seve Ballesteros (3,9), Gay Brewer, Billy Casper, Charles Coody, Ben Crenshaw (9,12), Nick Faldo (3,10), Raymond Floyd (2,9), Doug Ford, Bernhard Langer (9), Sandy Lyle, Larry Mize (9,10,13), Jack Nicklaus (9), Arnold Palmer, Gary Player (9), Craig Stadler (9,10), Tom Watson (9,14), Fuzzy Zoeller (9,10) Hale Irwin (12,13), Scott Simpson (9,10), Curtis Strange (9,14) Mark Calcavecchia (9,13,14), Greg Norman (10,12,13) Wayne Grady (13), Larry Nelson (10), Jeff Sluman (10), Bob Tway (12,13) Phil Mickelson (a,12), Manny Zerman (a) Rolf Muntz (a) Michael Combs (a) Jim Stuart (a) Bill Britton (11), Fred Couples (11,13,14), Donnie Hammond, Scott Hoch (10), John Huston (10,13), Steve Jones (10), Tom Kite (12,13,14), José María Olazábal (10,12), Masashi Ozaki, Ronan Rafferty, Lee Trevino, Lanny Wadkins (12,13,14) Jim Benepe, Mark Brooks, Billy Ray Brown, Mike Donald, John Inman, Tom Sieckmann, Tim Simpson (11,12,13) Chip Beck (12,13,14), Billy Mayfair (13), Mark McNulty, Gil Morgan (12,13), Don Pooley, Loren Roberts (13) Paul Azinger (13,14), Jay Don Blake, Steve Elkington (13), David Frost, Jim Gallagher Jr. (13), Morris Hatalsky, Nolan Henke, Kenny Knox, Wayne Levi (13), Davis Love III (13), Andrew Magee, Rocco Mediate, Jodie Mudd (13), Mark O'Meara (13,14), Steve Pate, Corey Pavin (13), Ted Schulz, Joey Sindelar, Ian Woosnam John Cook, Ian Baker-Finch, Robert Gamez, Peter Jacobsen, Nick Price, Brian Tennyson Ken Green, Mark McCumber Frankie Miñoza, Tsuneyuki Nakajima

Round summaries

First round

Thursday, April 11, 1991

Second round

Friday, April 12, 1991 Amateurs: Mickelson (−2), Zerman (−2), Stuart (+9), Combs (+11), Muntz (+11) Source:

Third round

Saturday, April 13, 1991

Final round

Sunday, April 14, 1991

Final leaderboard

Sources:

Scorecard

Cumulative tournament scores, relative to par Source: