日本プロ麻雀協会 is the organization in Japan founded in 2001 by Yasuaki Doi.
According to PR-model, npm2001.com is ranked 76,723rd in multilingual Wikipedia, in particular this website is ranked 5,165th in Japanese Wikipedia.
The website is placed before addik.tv and after medyblog.com in the BestRef global ranking of the most important sources of Wikipedia.
