Zach Johnson has won the Open Championship 2015 after defeating Marc Leishman and Louis Oosthuizen in a three-man play-off.
An emotional Johnson said: "I feel blessed to be the champion, I feel honoured to part of the history of this game and to don my name on that trophy, especially with the names before me. Humbling and surreal are two words that come to mind.
"I can't play any better than what I did. I had a lull on Friday and Saturday, but nothing significant, but stayed in it and waited for the opportunities and made a few."
Jordan Spieth agonisingly failed to keep his grand slam dream alive.
Spieth needed a birdie on the 18th hole at St Andrews to join the four-hole aggregate play-off, but saw his approach spin back off the green into the Valley of Sin and narrowly missed the birdie attempt.
Johnson had set the clubhouse target on 15 under after a closing 66 that was matched 40 minutes later by Leishman, whose total of 130 for the third and fourth rounds - he carded a flawless 64 on Sunday - equalled the lowest 36-hole total in major history.
Oosthuizen, who won the 2010 Open at St Andrews, still had two holes to play and after a crucial par save on the 17th the South African birdied the 18th from five feet to make it a three-way aggregate play-off on the first, second, 17th and 18th.
Johnson and Oosthuizen both birdied the first as Leishman three-putted from long range and Johnson edged ahead with another birdie on the second.
All three players bogeyed the 17th and after Johnson missed his birdie attempt on the 18th, Oosthuizen's attempt from 12 feet also missed to give Johnson his second major title, eight years after victory in the Masters.
Former Masters champion Adam Scott relived his Open nightmare from three years ago after collapsing over the final five holes at St Andrews.
The Australian was tied for the lead at the 144th championship midway through the back nine, but bogeyed the 614-yard 14th and then criminally missed from a foot for par at the next.
He compounded matters by bogeying the 17th and then hitting his drive at the last out of bounds for a double-bogey six to produce a finish reminiscent of his 2012 capitulation.
On that occasion he reached the 14th with a four-shot lead, but bogeyed his last four holes to hand the Claret Jug to Ernie Els.
"It's hard to digest it all at the moment," said the visibly shell-shocked 34-year-old, who broke his major drought by winning the green jacket in 2013, after coming home in 40.
"I probably needed a really good back nine and I had a really poor back nine. I feel like I wasn't even in it at that moment.
"Fourteen was my poorest shot I hit today and it cost me a bogey.
"That wasn't the end of the world but to miss a really short putt on the next, I don't really have an explanation for that.
"I just went up to tap it in from a foot and it lipped out. It is just one of those stupid things that happens and that really put me in a tough position to where finishing with a handful of threes was unlikely on a day like today.
"I'm disappointed the way I played the last five holes for sure. I could have done a lot better than that.
"It's a shame not to get in there and finish with a shot (at winning) but maybe it was too much to ask."
Round Three Scores
(GB & Ire unless stated, par 72)
204 P Dunne (a) 69 69 66,
L Oosthuizen (SA) 67 70 67, J Day (Aus) 66 71 67
205 J Spieth (US) (right) 67 72 66
206 P Harrington 72 69 65
207 Z Johnson (US) 66 71 70, A Scott (Aus) 70 67 70, R Goosen (SA) 66 72 69, D Willett 66 69 72, R Streb (US) 66 71 70, J Rose 71 68 68, M Leishman (Aus) 70 73 64, S Garcia (Sp) 70 69 68,
J Niebrugge (USA) 67 73 67
208 C Schwartzel (SA) 67 72 69, S Bowditch (Aus) 70 69 69,
E Pepperell 72 70 66
209 H Matsuyama (Japan) 72 66 71, R Palmer (US) 71 71 67, S Cink (US) 70 71 68, A Wall 70 71 68, D Johnson (US) 65 69 75, M Warren 68 69 72, R Fowler (US) 72 71 66, P Reed (US) 72 70 67
210 M Jones (Aus) 68 73 69, J Furyk (US) 73 71 66, P Lawrie 66 70 74, B Koepka (US) 71 70 69, G Chalmers (Aus) 70 71 69, A Chesters (a) 71 72 67, A Lahiri (India) 69 70 71
211 J Dufner (US) 73 71 67, G Ogilvy (Aus) 71 68 72, MKaymer (Ger) 71 70 70, D Lingmerth (Swe) 69 72 70, D Duval (US) 72 72 67, W Simpson (US) 70 70 71, H Mahan (US) 72 72 67, B Martin (US) 74 70 67, A Sullivan 72 71 68, J Walker (US) 72 68 71, LDonald 68 70 73, M Fraser (Aus) 74 69 68
212 O Schniederjans (a) (USA) 70 72 70, J Senden (Aus) 72 72 68, G Owen 68 73 71, R Langasque (a) (Fr) 69 72 71, G Delaet (Can) 71 73 68, J Morrison 71 71 70, H English (US) 71 72 69, K Na (US) 67 75 70, P Mickelson (US) 70 72 70, R Henley (US) 74 66 72, D Lipsky (US) 73 69 70, R Cabrera-Bello (Sp) 71 73 68
The Open - Past Winners and Venues since World War II
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