|Location||Aso, Kumamoto, Japan|
|Course(s)||Aso Golf Club|
Aso Kogen Hotel Golf Course
|Tour(s)||Japan Golf Tour|
The Bridgestone Aso Open was a professional golf tournament that was held in Japan. It was an event on the Japan Golf Tour from 1978 to 1993. From 1983, it was played at the Aso Golf Club near Mount Aso in Kumamoto Prefecture.
Originally contested over 36 holes as the Aso National Park Open, the tournament was extended to 54 holes in 1981, and then 72 holes from 1982.
|1981, 1983–1993||Aso Golf Club||Aso, Kumamoto|
|1978–1980, 1982||Aso Kogen Hotel Golf Course||Ubuyama, Kumamoto|
|Year||Winner||Score||To par||Margin of
|Bridgestone Aso Open|
|1993||Shigeru Kawamata||276||−12||2 strokes||Katsunari Takahashi|
|1992||Peter Senior||281||−7||1 stroke||Rick Gibson|
|1991||Kiyoshi Murota||208[a]||−8||2 strokes||Taisei Inagaki|
|1990||Teruo Sugihara||213[b]||−3||2 stroeks||Nobumitsu Yuhara|
|1989||Craig Parry||272||−16||6 strokes||Yoshiyuki Isomura|
|1988||Ian Baker-Finch||282||−6||1 stroke||Tadami Ueno|
|1987||Norio Mikami||280||−8||4 strokes|| David Ishii
|1986||Brian Jones||240[c]||−12||1 stroke||Nobumitsu Yuhara|
|1985||Hsieh Min-Nan||280||−8||Playoff||Masahiro Kuramoto|
|1984||Hideto Shigenobu||283||−5||Playoff|| Katsuji Hasegawa
|1983||Fujio Kobayashi||213||−3||Playoff||Tadami Ueno|
|Aso National Park Open|
|1981||Saburo Fujiki||213||−3||1 stroke||Yoshikazu Yokoshima|||
|1980||Masaji Kusakabe||109[d]||+1||1 stroke|| Yurio Akitomi
|1979||Takashi Kurihara||149||+5||Playoff|| Shinsaku Maeda
|1978||Tadami Ueno||143||−1||Playoff|| Tatsuo Fujima
- Tournament reduced to 54 holes after the first round was cancelled due to heavy rain and thick fog.
- Tournament reduced to 54 holes after the first round was cancelled due to rain.
- Tournament reduced to 63 holes after play was cancelled on the second day and 27 holes were played on the final day.
- Tournament reduced to 27 holes after the final round was cut to 9 holes due to fog.
- McCormack, Mark H. (1982). Dunhill World of Professional Golf 1982. Collins. pp. 235, 451. ISBN 0862541018.
- "Aso Open rained off". The Straits Times. 20 April 1991. p. 31. Retrieved 1 February 2021 – via National Library Board (Singapore).
- McCormack, Mark H. (1981). Dunhill World of Professional Golf 1981. Collins. pp. 172, 374–375. ISBN 0862540054.