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Practiscore Elo Ranking Update?


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#1 GooldMember

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Posted 11 May 2018 - 10:01 AM

A buddy of mine and I were talking about the PS Elo ranking thing, and how you could go about overhauling the classification system based upon a weighted average of classifiers and your Elo rank. We were thinking that would be a pretty nifty system and shouldn't be difficult at all for some statistics major to figure out. 

 

Does anyone know where that project stands? The last update I heard from Ken about it was pre-Nats in September, where it was forecast to go into Beta post-Nats in October. 



#2 racetaco

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Posted 11 May 2018 - 10:26 AM

We need this so bad!



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#3 Sweet T

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Posted 11 May 2018 - 10:30 AM

I've asked Ken about it a few times on Fbook.  

 

IIRC they're still working out the kinks before they release it


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#4 GooldMember

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Posted 11 May 2018 - 10:34 AM

I've asked Ken about it a few times on Fbook.  

 

IIRC they're still working out the kinks before they release it

That makes sense. I wish it was done already, but beggars can't be choosers. We don't have much of a leg to stand on when the PS team provides us so much for free. 


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#5 Peally

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Posted 11 May 2018 - 01:50 PM

My Elo ranking is M

 



#6 arancio

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Posted 11 May 2018 - 02:53 PM

That makes sense. I wish it was done already, but beggars can't be choosers. We don't have much of a leg to stand on when the PS team provides us so much for free. 

You think it is free ??  Wait until they present the bill.



#7 MNshooter

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Posted 11 May 2018 - 03:01 PM

We don't have much of a leg to stand on when the PS team provides us so much for free.

I know!
I keep thinking USPSA should buy PS. The more I think about it, I hope PS buys USPSA.
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#8 ngodwetrust21

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Posted 11 May 2018 - 03:33 PM

Very fun idea.
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#9 theManwithNoName

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Posted 12 May 2018 - 05:16 PM

PS already owns the USPSA...

 

If they showed classifier scores, no one would bother to go to the USPSA web site...



#10 Stranger Danger

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Posted 14 May 2018 - 09:25 PM

PS already owns the USPSA...

If they showed classifier scores, no one would bother to go to the USPSA web site...

The latest version shows the percentages when scored now


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#11 (Sh)ItJustGotReal

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Posted 14 May 2018 - 10:28 PM

The latest version shows the percentages when scored now


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On the website results?  Or are you talking about on the scoring device?



#12 Shootability

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Posted 15 May 2018 - 06:53 AM

Is there a discussion of Elo ranking for USPSA (officially)  or is this just a reality check for  Practiscore?



#13 Peally

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Posted 15 May 2018 - 09:37 AM

The latest version shows the percentages when scored now


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Not on Android. That would be too convenient when practicing.



#14 Peally

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Posted 15 May 2018 - 09:38 AM

Is there a discussion of Elo ranking for USPSA (officially)  or is this just a reality check for  Practiscore?

 

Pretty sure it's just something Practiscore thought would be cool to do.


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#15 GooldMember

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Posted 15 May 2018 - 09:56 AM

Pretty sure it's just something Practiscore thought would be cool to do.

From what I understand it was some interns that were computer science seniors and got put to work on it just as a project. I do want it to go live though, both for funsies and for the potential of classification stuff. Though I doubt that would ever actually happen. 



#16 not that bryan

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Posted 15 May 2018 - 04:29 PM

From what I understand it was some interns that were computer science seniors and got put to work on it just as a project. I do want it to go live though, both for funsies and for the potential of classification stuff. Though I doubt that would ever actually happen.

Ken Nelson gives interns / new hires to his main company jobs for practiscore so he can evaluate their coding before putting them to work on more sensitive projects.

The ELO ranking is likely one of those projects. It exists (or will) because Ken thought it was a cool idea.
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#17 Craig Tappe

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Posted 28 May 2018 - 07:00 PM

What is this ELO ranking thing? I cant find any info about it aside from this thread.


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#18 Peally

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Posted 29 May 2018 - 08:41 AM

What is this ELO ranking thing? I cant find any info about it aside from this thread.

 

A method of ranking someone's skill in a particular game/sport/whatever. In a nutshell you have a ranking (say, 1000), and it adjusts as you win or lose to people. It's weighed so you lose less and gain more points if your opponent's rank highly outclasses your own. For example if you had an average run of the mill ELO ranking and beat a bunch of GMs your ranking number would jump up a bunch, but if you won against a bunch of D class guys it would barely budge.

 

It's basically just a number that reflects your win/loss skillz at any particular time. The appeal is it's constantly updated based on your opponents, versus a snapshot system like the USPSA classifiers (which in the case of PCC can also inaccurately reflect someone's skill level). As a shits and giggles thing it would be interesting to look at.


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#19 GooldMember

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Posted 29 May 2018 - 01:02 PM

Tiny grammar rant: everybody is always capitalizing ELO like it is some abbreviation. It is a name. You wouldn't be like "this is STEVE. Be like STEVE." /rant

 

https://en.wikipedia...o_rating_system


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#20 GooldMember

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Posted 29 May 2018 - 01:17 PM

What is this ELO ranking thing? I cant find any info about it aside from this thread.






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