Monthly List: October 1960 rating list     http://db.chessmetrics.com/CM2/SingleMonth.asp?Params=199510...     tags: elo chess ratings 1960 FIDE historical ratings     http://www.mark-weeks.com/chess/ratings/     tags: chess ratings elo Edo Ratings - Explanation     http://www.edochess.ca/Edo.explanation.html     tags: chess ratings elo