Spieth’s stunning 10-shot victory
The 21-year old Texan, who collected a $1m prize cheque, also eclipsed World No. 1 Rory McIlroy in winning a third pro title in just two full seasons while it took McIlroy three-and-a-half season to win three in capturing the 2011 US Open.
Graeme McDowell signed for a one under par 71 to share of 11th place at eight under par.
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