Horikawa, who birdied his opening six holes in Thursday’s opening round, led the event from wire to wire and he was never really pressed in today’s final round, eventually running out an easy winner.
Horikawa moves to 3rd on this season’s Japan Tour money list behind 3rd placegetter this week, Jazz Wattenanond, and Imahira.
Wattananond tied with American Chan Kim who has now been runner-up and 3rd in his last two Japan Tour starts in 2019.
Horikawa completed his second round alone on Saturday morning following the withdrawal of playing partners Jumbo Ozaki and Ho Sung Choi but by the time Saturday was over he had established a three shot 54 hole lead which he extended on Sunday.
Gold Coaster, Brad Kennedy, finished as the leading Australian when he tied for 12th, his best finish in six starts this season on the Japan Tour although he played very well in events in Australia and New Zealand earlier in the year.
Kennedy began the event well and was tied for 3rd through 36 holes but weekend rounds of 72 and 72 saw him slip down the leaderboard. He will, however, move to 25th on the money list for the season.
Matthew Griffin finished 16th, Brendan Jones 23rd, David Bransdon 42nd, Zach Murray and Won Joon Lee 48th and Anthony Quayle 68th.
Brendan Jones remains as the leading Australian on this year's money list in 5th place.
With the US Open on at Pebble Beach this coming week, the next domestic event on the Japan Tour will be the Dunlop Srixon Fukushima Open beginning on June 27th.
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