Lee Westwood's bid to end his 15-month title drought ended in triple-bogey disaster at Sun City today as he fell away from the lead as home favourite Retief Goosen won the Nedbank Challenge.

He has not registered a victory since September 2003's Dunhill Links Championship but led at the start of the final round and made a steady start to his round before a seven at the eighth hole left his challenge in tatters.

Westwood was wayward with his drive, had to chip out sideways, and then found a greenside bunker with his next shot, from which he took two shots to escape.

Despite a birdie at the next, Westwood's implosion continued down the back nine, with four dropped shots between the 10th and 15th holes proving ruinous.

Victorious Goosen began his round with a flurry of birdies and once Westwood had dropped his clanger the pressure was off the South African.

Goosen carded a 69 to complete his tournament on seven under, six shots clear of compatriot Ernie Els and Australian Stuart Appleby, who shared second place.

Westwood's decline was dramatic and after a further bogey at the 17th and a double at the 18th, he completed the course in 80, eight over par for the day and three over for the tournament.

He took a share of sixth place in the 12-man event, alongside American Jay Haas whose compatriots Chris DiMarco and Jim Furyk were joint fourth on level par.

Spain's Sergio Garcia finished last, with a closing 78 giving last year's champion an aggregate score of 15 over.

(USA unless stated, par 72):

281 Retief Goosen (Rsa) 70 71 71 69

287 Stuart Appleby (Aus) 70 69 74 74, Ernie Els (Rsa) 70 74 72 71

288 Chris DiMarco 71 74 69 74, Jim Furyk 74 76 66 72

291 Lee Westwood (Eng) 70 70 71 80, Jay Haas 75 74 70 72

292 Todd Hamilton 74 72 71 75

293 Nick Price (Rsa) 71 70 74 78

297 Fredrik Jacobson (Swe) 75 78 72 72

299 Chad Campbell 80 75 72 72

303 Sergio Garcia (Spa) 75 76 74 78