These are the published ratings of ICU members from September 2001 to the present.
Rating lists are published monthly and
only include subscribed ICU member at time of publication.
What are "provisional" and "full" ratings?
Until a player has 20 rated games their rating is considered provisional
(indicated here by an italic font) and its calculation is based on average
tournament performance. After 20 games a player is considered to have a full
rating and its calculation is based on the Elo rating system.
Why is my old club not shown?
Unfortunately we only track a member's current club so that's all we can display here.
Why is my federation not shown?
It hasn't been recorded in the database yet. If we ever need to know it
(e.g. for FIDE registration) we may assume Irish unless there is any
doubt in which case we will contact you. Players with unknown federation,
especially those with names that would pass as Irish but who are not actually
Irish (e.g. English), are strongly encouraged to get in touch:
Membership Officer,
Rating Officer.
How can I find out the ICU ID of a player?
Check the
show ICU ID
option or hover your mouse over the player's name.
Why do so many players have a rating of 400, or 700 on earlier lists but none below that?
In order not to discourage learners, the ICU has a policy of rounding up
published ratings below 400, when it comes to publication on the monthly lists. The ratings
used for calculation of opponents' rating changes, and for the "live" rating list, are
unaffected by this policy. Before September 2023 this floor was set at 700 instead.
What are "original" ratings?
These are ratings as they were originally at the end of the month in
which they were first published and without any corrections which may
have been applied later.
Please see
this article
for more details.
How can I save my search to the address bar?
Search results will update as soon as a menu is altered, a checkbox
checked or a text field changed, however the web page address shown
in the browser's address bar will remain the same. If you want to
bookmark your search or be able to use the browser's Back button to
return to it, click the Search button.
Can I download the results of my search?
You can download all (unpaginated) search results to a comma-separated values file
by clicking the CSV button. This feature is only available to logged in members.
