8/25/2020 – If Arpad Elo were still alive he would be 117 years old today – 15 years past the age of 102 that he was supposed to survive to, as foretold by a Budapest gypsy when he visited Hungary in 1970. In reality, he died in Wisconsin, USA at the age of 89. A close associate and family friend, Elmer Dumlao Sangalang, looks back at the man who revolutionised chess. | Pictured: Arpad Elo and Fred Cramer

3/2/2019 – Chess fans tend to focus on the FIDE ratings of the top players in the world which are updated monthly. But the Elo system wants to reflect the strength of the chess players of all strengths all over the world. Since its introduction in 1970 it has become immensely popular and important for the chess world. However, it is not without problems. Why, for example, are junior players from Russia or India continuously underrated and how does this affect other players? To answer this and other questions, WALTER WOLF took a close look at the development of some ratings over time. | Photo: Junior players from India, courtesy ChessBase India

6/14/2018 – At the end of the FIFA Council last Sunday in Moscow, the World Football Association announced that it would reform its world ranking for the national football teams. There was much criticism of the previous ranking system and the new formula is based on the chess Elo.

2/6/2011 – Certain facts regarding the rating system are misunderstood or unfamiliar to top-rank players, as well as organizers and administrators of major chess events. The recent articles that appeared on the subject, as well as the contest organized by a statistician, point to the fact that certain basic concepts have not been fully understood. Elmer Dumlao Sangalang endeavors to rectify the situation.

12/16/2007 – Ask chess players about their rating you will get an immediate response, ask them where the term "Elo" comes from and you get a puzzled look. Most think it is some kind of abbreviation or acronym. In Reality it comes from a Hungarian-born chess player and physicist, Árpád Imre Élö, who gained immortailty with his rating system. It is comprehensively described in this article by Daniel Ross.

8/30/2003 – Many people think that the letters ELO are some kind of acronym, like FIDE or NASA. But they come from Arpad Emre Elo, born on August 25, 1903. Prof. Elo was a strong chess player (two draws against Rueben Fine!) and a physicist. He achieved fame by devising a new rating system that has gained universal acceptance. Here's a commemorative portrait.

10/22/2002 – Every three months, FIDE publishes a list of chess ratings calculated by a formula that Professor Arpad Elo developed decades ago. This formula has served the chess world quite well for a long time. However, statistician Jeff Sonas believes that the time has come to make some significant changes to that formula. He presents his proposal in this milestone article.