Otani was a champion amateur winning the 16th Japan Amateur Golf Championship in 1922 and played in exhibitions paired with the Crown Prince Hirohito, giving him unique stature and influence in early Japanese golf.
Mitsuaki Otani is often called the "Father of Japanese Golf." He was a pioneering Japanese golfer, golf course architect, champion amateur, and significant promoter of the sport in Japan. Otani was instrumental in establishing golf in Japan, including helping found the Japan Golf Association and translating the rules of golf into Japanese.
His key architectural works include designing the Oshima Course at Kawana Hotel Golf Club in Ito City, Shizuoka Prefecture, which opened in 1928 and is one of Japan’s earliest and most historically prestigious courses. The Oshima Course is known for its dramatic layout amidst natural terrain, with significant elevation changes, swells, narrow fairways, and ocean views. Otani’s influence on Japanese golf extends from playing and organizing to course design, making him a foundational figure in the sport's growth across Japan. He passed away in 1955 but left a lasting legacy in both golf architecture and the game's culture in Japan.

