Japan Open
18 editions on record, back to 1989
Editions with full placings
- 2014Japan Open★ Yuta Ikeda(Dec1985)
- 2013Japan Open★ Masanori Kobayashi
- 2011Japan Open★ Sangmoon Bae
- 2003Japan Open★ Keiichiro Fukabori
- 2002Japan Open★ David Smail
- 2001Japan Open★ Taichi Teshima
- 2000Japan Open Championship★ Naomichi Joe Ozaki
- 1999Japan Open Champ★ Naomichi Joe Ozaki
- 1998Japan Open Champ★ Hidemichi Tanaka
- 1997Japan Open Champ★ Craig Parry
- 1996Japan Open Champ★ Peter Teravainen
- 1995Japan Open Champ★ Toshimitsu Izawa
- 1994Japan Open Champ★ Masashi Ozaki
- 1993Japan Open Champ★ Seiki Okuda
- 1992Japan Open Champ★ Masashi Ozaki
- 1991Japan Open Champ★ Tommy Nakajima
- 1990Japan Open★ Tommy Nakajima
- 1989Japan Open Champ★ Masashi Ozaki