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Author Re: Ratings experts: Please explain
George John

2005-04-07, 6:08 pm


Mike Nolan wrote:
quote:

> I assume you are putting in the actual pre-event ratings for everyone
> (including you) as opposed to whatever their published rating was at

the
quote:

> time of the event. [SNIP]


Note: post-event ratings for opponents are preferred over pre-event
ratings.
quote:

> Were any of the players that either of you faced unrated or

provisionally
quote:

> rated? If so the ratings calculator will not do as good a job of

estimating
quote:

> the post-event ratings, since for unrated or provisionally rated

players
quote:

> a different formula is used.


Note: the online calculator does use the different formula for unrated
and provisionally rated players. What it does not take into account is
if all prior games have been wins or losses, which I think is rare.

Best regards,

George John

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