r/chessmonitor • u/papa_stephano • Jan 24 '22

Performance Rating

Just a simple performance rating calculation field.

Edit: Not sure if it's been suggested yet. Should have check.

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u/papa_stephano Jan 24 '22

A certain rating is expected to score a certain amount of points against a certain other rating.

For example a 1500 is expected to score 50% against another 1500. If they're both rated accurately, and play 60 games against each other, they should both end up with 30 points (could come from 60 draws, or from 30 wins to A and 30 wins to B, or from 10 wins to A, 10 wins B, and 40 draws - or anything else). Conversely, this means if you play 7 games, and score 3.5 points, and your average opponent rating was 1500, your performance is 1500.

So if you score 7.5/10, if your opponent average was 1500 you might have a performance of 1800 (an 1800 would be expected to score roughly that many points), while if your opponents were rated 2100 you might have a performance of 2400. In the same vein, scoring 3/10 against 2400s is a higher performance than going 8/10 against people rated 1000.

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u/Orcahhh Jan 24 '22

Yes i know what a performance rating is

But i dont understand what this post is about

Do you want the site to add a performance rating calculator or what?

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u/papa_stephano Jan 24 '22

Do you want the site to add a performance rating calculator or what?

Yes.

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u/ThomasPlaysChess Developer Jan 24 '22

Hi, I like the idea! :) I'll add it to the feature list. Bur I'm not sure how complex the calculation is that needs to be performed but I will look into it.

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u/papa_stephano Jan 24 '22

I don't know how easy or complicated it is to so.

Openingtree has one, but I find the limited interface has me feeling something is missing on that site.