[Photo : Getty Images]
Louis Oosthuizen marked Nelson Mandela Day in exactly the way he dreamed of - by becoming only the fourth South African ever to win The Open Championship.The 27 year old did it at the venue every player wants to most, the Home of Golf at St Andrews, and he did it by lapping the field as he finished the week with a seven shot gap.
Oosthuizen had no need to get too animated as he turned his four shot overnight lead into an almost unbelievable seven stroke triumph over Lee Westwood.
Paul Casey, triple bogeyed the 12th and by coming home in 40 for a 75, slipped to joint third with 21 year old Northern Irishman Rory McIlroy and Swede Henrik Stenson - Retief Goosen ensuring all of the top six were European Tour Members.
Since 1913 there has been only one bigger victory in the event - Tiger Woods by eight over the same Old Course ten years ago.
And this from a 200/1 outsider who had missed the halfway cut in seven of his previous eight Majors and came last in the other.
With a closing 71 and a 16 under par total of 272, three more than Woods in 2000, he followed in the footsteps of Bobby Locke, Gary Player - four and three-time winners respectively - and 2002 champion Ernie Els, whose Foundation gave him his career lift-off as a teenager.
His first Major title earned him €1,011,840 and moves him up to 15th in the Official World Golf Ranking.
"It's unbelievable - just amazing," said Oosthuizen. "It's probably going to hit me tomorrow or the week after. I felt like I played well all week and the biggest goal for me was to stay cool.
"I'd like to have kept the record of not going in the bunker (like Woods in 2000), but I went in one on the 14th.
"It became a bit difficult having a big lead, but I'm glad I had all those shots in hand on the 17th."
Westwood, who lost by one after a closing bogey at Turnberry last year and was runner-up to Phil Mickelson at The Masters Tournament in April, is not going to beat himself up too much over this one.
"I know what I've got to do - improve," he said after his 70.
"I'm showing a lot of consistency, but it's not quite good enough. I'm not sure what it is quite. I keep putting myself in position and in contention - that's all I can do.
"I didn't get off to a quick enough start today. I thought if I could turn in five under anything was possible, but it was difficult out there.
"The pin positions were tough. This is not an easy course when there's a 20mph wind blowing. And Louis is obviously playing really well."
Casey will probably spend more time than his Ryder Cup teammate thinking what might have been - and so will McIlroy after starting with a Major Championship record-equalling 63 and following it with an 80 in Friday's 40mph gusts.
The youngster came back with rounds of 69 and 68, but the damage had been done.
After a superb approach to five feet on the first, Casey missed the chance to cut the gap instantly to three.
He then came up short of the second green and, after chipping 20 feet past, bogeyed to fall five back.
Meanwhile, Oosthuizen showed no sign of frailty as he calmly parred the first five holes.
However, although he added another at the next, Casey birdied from four feet and when the leader failed to get up and down from just off the green at the short eighth the difference was down to three.
Both drove the green on the 352 yard ninth, but when Oosthuizen holed from over 40 feet for an eagle two the tournament was back in his firm grip.
With Casey making birdie it was still between the two of them, but even with The Road Hole 17th to come the outcome was effectively decided by the 348 yard 12th, innocuous by comparison.
Oosthuizen reduced it to a drive, a pitch and a 15 foot birdie putt. Casey, on the other hand, went in gorse, took a penalty drop, was short in three, long in four and with a seven his Claret Jug hopes were buried barring a total collapse from the man he was playing with.
It was his second triple bogey of the week. The other, at the 17th in round two, was one he could come back from - this one will stick far longer in the memory.
Oosthuizen's only mistake on the back nine came when it did not matter, a five at the 17th.
Rory McIlroy finished in a tie for 3rd on 8 under after a final round of 68 and an aggregate of 280
Graeme McDowell signed for a round 70 om Sunday to remain on 3 under on 285 and secure a share of 23rd place.
Colm Moriarty was one under in his hist first Open Championship following a final round of 70 for a total of 287 along with Shane Lowry who signed for a 75 - after a double bogey on 17.
Darren Clarke signed for 171 to remain level par for the tournament with an aggregate of 288.