Japan Senior Open Golf Championship
The Japan Senior Open Golf Championship is one of the major championships in Japanese men's senior golf. It is administered by the Japan [Golf Association] and is recognised as a major championship by the PGA of Japan Senior Tour. It was founded in 1991.
Winners
- 2025 Thammanoon Sriroj
- 2024 Choi Ho-sung
- 2023 Hiroyuki Fujita
- 2022 Prayad Marksaeng
- 2021 Taichi Teshima
- 2020 Akira Teranishi
- 2019 Toru Taniguchi
- 2018 Prayad Marksaeng
- 2017 Prayad Marksaeng
- 2016 Prayad Marksaeng
- 2015 Takenori Hiraishi
- 2014 Masahiro Kuramoto
- 2013 Kiyoshi Murota
- 2012 Frankie Miñoza
- 2011 Kiyoshi Murota
- 2010 Masahiro Kuramoto
- 2009 Tsukasa Watanabe
- 2008 Tsuneyuki Nakajima
- 2007 Isao Aoki
- 2006 Tsuneyuki Nakajima
- 2005 Tsuneyuki Nakajima
- 2004 Katsunari Takahashi
- 2003 Katsunari Takahashi
- 2002 Takaaki Fukuzawa
- 2001 Fujio Kobayashi
- 2000 Katsunari Takahashi
- 1999 Graham Marsh
- 1998 Graham Marsh
- 1997 Isao Aoki
- 1996 Isao Aoki
- 1995 Isao Aoki
- 1994 Isao Aoki
- 1993 Seiichi Kanai
- 1992 Seiichi Kanai
- 1991 Seiichi Kanai