Ko eases to win in Arkansas

Lydia Ko has cruised to a three-shot win at the Walmart NW Arkansas Championship on Sunday.

The teenager secured her 13th LPGA Tour victory and third of the year with a three-under 68 in the final round.

Ko shot a 62 on Saturday to set up her win, and she finished at 17 under at the Pinnacle Country Club in Rogers.

Already a two-time major winner, Ko had six birdies and three bogeys - including one at the last hole - in her final round.

Candie Kung and Morgan Pressel shared second place, three shots behind the 19-year-old Kiwi.

Angela Stanford, Moriya Jutanugarn, Sandra Gal and Jing Yan ended up a further shot back in a tie for fourth.

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