ProGoR: Go Ratings of Professional and Strong Amateur Players applies the EGF Rating System, and Elo ratings system, to a large number of professional go players thereby creating an ordered list of players by computed rating regardless of nationality or professional go association affiliation. Significant go countries covered include: China, Japan, Korea and Taiwan. National associations include: Hankuk Kiwon, Kansai Ki-in, Nihon Ki-in, and Zhongguo Qiyuan.
The site has been inactive since 22 July 22 2006.
ProGoR website (verified responsive 22 October 2010)
John F. (19 February 2008?) I think this address is now defunct. Ales Cieply contacted me a few days ago and intimated he was migrating to a new server, as well as preparing a long-awaited update.
tapir: The website works but has only an incomplete data set (e.g. only 1/3 of official matches of Xie Yimin) and isn't updated since 2008. Would be nice to see an update, computation of games for which no official game record exists (preliminary rounds), and more computation of mixed pro-ama events. Otherwise one has to expect low level professional ratings being pushed down beneath good amateur level - because or despite lack of information about their performance against amateurs as we have two only sparsely connected sub-populations here.