article_snippet.sent: However, it was not enough to see off Kisner, who also tied at 18 under when his sank a birdie with his final putt.
article_snippet.sent: Recent US Masters champion Jordan Spieth finished tied 11th after a final round 70 .
article_snippet.sent: Luke Donald was the highest placed Englishman after tied 15th on nine-under par .
article_snippet.sent: Merrit, who had hit a course-record 61 on Friday, finished third on 16 under, one stroke ahead of Brendon Todd with defending champion Matt Kuchar one further back.
article_snippet.sent: Recent US Masters champion Jordan Spieth ended tied for 11th at 10 under following a closing round of 70, which included a double bogey on the par-three 14th after his tee shot went into the water.
article_snippet.sent: Former Open champion Louis Oosthuizen was tied seventh after a 67 left the South African on 12 under.
article_snippet.sent: A 70 from England's Luke Donald saw Former Open champion Louis Oosthuizen slip down the field to finish tied 15th at nine under having looked in contention after successive rounds of 66.