Story highlights Danny Willett wins 80th Masters

Cards final round of five-under 67

First major for 28-year-old Englishman

Jordan Spieth cards quadruple bogey on 12th

(CNN) England's Danny Willett capitalized on an astonishing collapse by defending champion Jordan Spieth to win the 80th Masters after a dramatic final afternoon at Augusta National.

The world's second-ranked golfer held a five-shot lead until he dropped six shots in three holes, culminating in a disastrous quadruple bogey on the short 12th, where he found the water twice.

It left Willett in charge and he duly increased his lead with a fearless birdie on the short 16th to go to five-under, a position he held until his triumphant finish.

Willett's bogey-free five-under round of 67 left him on five-under 283, three shots clear of Spieth and fellow Englishman Lee Westwood.

The 28-year-old came into the Masters as a four-time winner on the European Tour, but with an indifferent record in the majors, his best tied sixth in last year's British Open.

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