NAF Rankings: how are they calculated

Artificial Penguin · Post by **Artificial Penguin** » Tue Feb 18, 2003 2:42 am

Exactly what do these numbers (roughly 140 - 190) represent? I didn't see it explained on their website.

Darkson · Post by **Darkson** » Tue Feb 18, 2003 7:33 am

Artificial Penguin wrote:Exactly what do these numbers (roughly 140 - 190) represent? I didn't see it explained on their website.

Well 140 represents 10 lots of 14 and 190 represents 10 lots of 19

zeroalpha · Post by **zeroalpha** » Tue Feb 18, 2003 7:45 am

I think that there is an explanation on the website of how they arrive a a given ranking.
You start with 150 points when you join and then by winning games it goes up, depending on the quality of the opposition. The reverse is also true, losing more points by being beaten by a lower ranked opponent. On top of that there is a multiplier depending on the number of coaches attending the given tournament.
hope that helps a little

Slinky78 · Post by **Slinky78** » Tue Feb 18, 2003 12:20 pm

It's a good question, and the answer on the site is not very mathematical to say the least....i.e. it doesn't actually include any numbers (except 150). Are we going to get to know these mystical formulae?

Deathwing · Post by **Deathwing** » Tue Feb 18, 2003 12:27 pm

viewtopic.php?t=2776&highlight=rating

Slinky78 · Post by **Slinky78** » Tue Feb 18, 2003 1:54 pm

You have an answer for everything....

Deathwing · Post by **Deathwing** » Tue Feb 18, 2003 1:55 pm

You asked for maths. All clear now?

Slinky78 · Post by **Slinky78** » Tue Feb 18, 2003 4:10 pm

Yes, perfectly thank you.

Just to clarify for me though. The TR (I assume team rating) is only applicable to tournaments where you have team progression I assume? Whereas in the bb it'll just be standard as there's no progression as such. Is that right? It obviously makes no difference to the maths if it's constant, was just wondering if I'm interpretting it right.

Does seem like a very good system.
Although the k value system does mean the bb mean BIG relative point swings. Which isn't a problem unless you're out of practice and not very good....and only 10 days left....oh well, I might get lucky.

Slinky78 · Post by **Slinky78** » Tue Feb 18, 2003 4:11 pm

I personally think it would be a good idea to have a synopsis of the ranking calculation somewhere on the NAF site as well.
(sorry for suggesting ideas which involve more work...)

neoliminal · Post by **neoliminal** » Tue Feb 18, 2003 4:50 pm

Thanks for the suggestion. Such a write up is in the works. It's not an easy thing to explain, unfortunately. The math is a little advanced for the average player.

And yes, the TR being the same results in the value being meaningless any give calculation.

Slinky78 · Post by **Slinky78** » Tue Feb 18, 2003 10:35 pm

The formula itself isn't that complex, but the way it was written in that previous thread didn't make it that easy to fathom, often the problem with equations written 'flat' for computing rather than the way people are used to seeing on paper. Might help to produce it using something like the equation editor in Word. People who don't like maths can get freaked by all the brackets!

That's all my useful thoughts for the day - more than normal though

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NAF Rankings: how are they calculated

NAF Rankings: how are they calculated

Re: NAF Rankings: how are they calculated