ACN Championship

Tournament information
Location	Miki, Hyōgo, Japan
Established	1969
Course(s)	Miki Golf Club
Par	70
Length	7,163 yards (6,550 m)
Organized by	Japan Golf Association Asia-Pacific Golf Confederation Mitsubishi Corporation
Tour(s)	Japan Golf Tour Asian Tour
Format	Stroke play
Prize fund	¥100,000,000
Month played	October
Tournament record score
Aggregate	264Takumi Kanaya (2024) 264Ryu Hyun-woo (2024)
To par	−26Brandt Jobe (1995)
Current champion
Takumi Kanaya
Location map
Miki GC Location inJapan Show map of Japan Miki GC Location in theIbaraki Prefecture Show map of Hyōgo Prefecture

TheDiamond Cup Golf (アジアパシフィックオープンゴルフチャンピオンシップ ダイヤモンドカップゴルフ,Ajia pashifikku opun gorufu chanpionshippu Daiyamondo kappu gorufu) is a professionalgolf tournament on theJapan Golf Tour. Founded in 1969, the event has been hosted at different courses throughout Japan, including on all four major islands. In 2022, the purse was¥100,000,000, with ¥20,000,000 going to the winner. From 2014 to 2019 the tournament was co-sanctioned by theAsian Tour.

Year	Tour(s)[a]	Winner	Score	To par	Margin of victory	Runner(s)-up	Ref.
ACN Championship
2024	JPN	Takumi Kanaya	264	−20	Playoff	Ryu Hyun-woo
2023	JPN	Yuki Inamori	271	−17	Playoff	Song Young-han
Asia Pacific Open Golf Championship Diamond Cup
2022	ASA,JPN	Shugo Imahira	272	−8	1 stroke	Hiroshi Iwata Yuto Katsuragawa Kaito Onishi Kosuke Suzuki (a)
Asia-Pacific Diamond Cup Golf
2021	JPN	Rikuya Hoshino	275	−13	4 strokes	Juvic Pagunsan
2020	ASA,JPN	Cancelled due to theCOVID-19 pandemic					[1]
2019	ASA,JPN	Yosuke Asaji	281	−3	1 stroke	Micah Lauren Shin Ren Yonezawa (a)
2018	ASA,JPN	Yuta Ikeda	269	−15	6 strokes	Justin Harding
2017	ASA,JPN	Daisuke Kataoka	272	−12	2 strokes	Poom Saksansin Tadahiro Takayama
2016	ASA,JPN	Chan Shih-chang	270	−10	2 strokes	Ippei Koike
2015	ASA,JPN	Kim Kyung-tae (2)	271	−9	3 strokes	Yuta Ikeda Toshinori Muto
2014	ASA,JPN	Hiroyuki Fujita	278	−6	2 strokes	Kiradech Aphibarnrat Hur Suk-ho Jason Knutzon
Diamond Cup Golf
2013	JPN	Hideki Matsuyama	279	−9	2 strokes	Brad Kennedy Kim Hyung-sung Park Sung-joon
2012	JPN	Hiroyuki Fujita	274	−14	3 strokes	Kiradech Aphibarnrat
2011	JPN	Koumei Oda	272	−16	4 strokes	Toshinori Muto Kaname Yokoo
2010	JPN	Kim Kyung-tae	272	−16	2 strokes	Koumei Oda
Mitsubishi Diamond Cup Golf
2009	JPN	Takashi Kanemoto	283	−5	Playoff	Brendan Jones
2008	JPN	Prayad Marksaeng	274	−10	1 stroke	Shintaro Kai
2007	JPN	Tetsuji Hiratsuka (2)	282	−2	1 stroke	Satoru Hirota Kiyoshi Miyazato
2006	JPN	Kaname Yokoo	275	−9	2 strokes	Nozomi Kawahara Toru Suzuki
2005	JPN	Jang Ik-jae	275	−5	3 strokes	Shingo Katayama Ryoken Kawagishi
2004	JPN	Tetsuji Hiratsuka	275	−13	5 strokes	Hidemasa Hoshino
Diamond Cup Tournament
2003	JPN	Todd Hamilton	276	−12	3 strokes	Steven Conran
2002	JPN	Tsuneyuki Nakajima (4)	269	−19	2 stokes	Tomohiro Kondo Hirofumi Miyase Christian Peña
2001	JPN	Toshimitsu Izawa	277	−11	Playoff	Hiroyuki Fujita Yuji Igarashi
Mitsubishi Motors Tournament
2000	JPN	Hirofumi Miyase	276	−8	Playoff	Toru Taniguchi
1999	JPN	Tsuyoshi Yoneyama	268	−16	Playoff	Kazuhiko Hosokawa
Mitsubishi Galant Tournament
1998	JPN	Toru Taniguchi	268	−16	1 stroke	Kazuhiko Hosokawa
1997	JPN	Masashi Ozaki (2)	278	−10	2 strokes	Satoshi Higashi Kōki Idoki Tōru Nakamura
1996	JPN	Masashi Ozaki	279	−9	Playoff	Todd Hamilton
1995	JPN	Brandt Jobe	266	−26	6 strokes	Masahiro Kuramoto
1994	JPN	Katsuyoshi Tomori	205	−11	6 strokes	Tsuneyuki Nakajima
1993	JPN	Chen Tze-chung	277	−11	4 strokes	Brian Jones Yoshi Mizumaki Tateo Ozaki
1992	JPN	Isao Aoki (2)	277	−11	4 strokes	Chen Tze-chung Saburo Fujiki
1991	JPN	Koichi Suzuki	280	−8	1 stroke	Isao Aoki Tsuneyuki Nakajima
1990	JPN	Isao Aoki	289	+1	3 strokes	Masashi Ozaki Teruo Sugihara Tsuyoshi Yoneyama
1989	JPN	Tateo Ozaki	284	−4	2 strokes	Masanobu Kimura
1988	JPN	Brian Jones (3)	271	−17	Playoff	Naomichi Ozaki
1987	JPN	Brian Jones (2)	283	−5	3 strokes	Nobuo Serizawa Koichi Suzuki
1986	JPN	Tsuneyuki Nakajima (3)	280	−8	1 stroke	Chen Tze-ming
1985	JPN	Brian Jones	272	−12	Playoff	Nobumitsu Yuhara
1984	JPN	Haruo Yasuda (2)	275	−13	4 strokes	Kouichi Inoue Yoshitaka Yamamoto	[2]
1983	JPN	Tsuneyuki Nakajima (2)	278	−10	6 strokes	Lu Hsi-chuen
1982	JPN	Graham Marsh (3)	271	−13	Playoff	Teruo Sugihara
1981	JPN	Lu Hsi-chuen	289	+1	Playoff	Tōru Nakamura Teruo Sugihara
1980	JPN	Tsuneyuki Nakajima	276	−12	4 strokes	Yoshihisa Iwashita Graham Marsh
1979	JPN	Tōru Nakamura (2)	285	−3	1 stroke	Yoshio Kusayanagi
1978	JPN	Tōru Nakamura	280	−8	1 stroke	Hsu Sheng-san Norio Suzuki	[3]
1977	JPN	Hsu Sheng-san	277	−11	3 strokes	Takaaki Kono Graham Marsh Teruo Sugihara
Dunlop Tournament
1976	JPN	Yoshikazu Yokoshima	274	−14	2 strokes	Isao Aoki
1975	JPN	Norio Suzuki	278	−10	2 strokes	Mya Aye
1974	JPN	Graham Marsh (2)	272	−16	3 strokes	Masashi Ozaki Teruo Sugihara
1973	JPN	Ben Arda	280	−8	4 strokes	Masashi Ozaki
1972		Graham Marsh	271	−17	5 strokes	Ben Arda
1971		Peter Thomson	280	−8	1 stroke	Haruo Yasuda
1970		Haruo Yasuda	137	−7	2 strokes	Fujio Ishii Takashi Murakami	[4]
1969		Takaaki Kono

• Coverage on Japan Golf Tour's official site
• Coverage on Asian Tour's official site
• Tournament's site(in Japanese)

• Golf tournaments in Japan
• Japan Golf Tour events
• Former Asian Tour events
• Recurring sporting events established in 1969

• CS1 Japanese-language sources (ja)
• Articles with short description
• Short description is different from Wikidata
• Use dmy dates from August 2023
• Articles containing Japanese-language text
• Articles with Japanese-language sources (ja)