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France15446 Posts
The latest TLPD version now includes ELO ratings for players. You can check them out here.
The resulting ranking is more or less "beta" right now, and the different variables used in the algorithm might change in the future (see below for more details).
Something everyone should know about ELO: it’s a 100% skill-based system. Success is not taken into account. Winning a game in the OSL finals or in the MBC prelims gives the exact same amount of points (provided the opponent is the same). We will probably get another rating system later, which will take success into account as well-- but ELO will most likely stay anyway.
So in the player index, there are two new distinct columns:
- the "ELO" column gives the current ELO rating of the corresponding player: it can basically be seen as his "current strength" (again, pure skill-wise) and should evolve accordingly ;
- the "ELO Peak" sorts players by the highest ELO rating they ever reached: this basically provides an easy way to spot which players were the most dominant at their time, but also when (clicking on their rating brings you to their "peak game").
For those knowledgeable about ELO, we currently use K = 40 for players who have played a limited amount of games (< 20), and K = 20 for the rest. However, nothing is set in stone in this regard-- it's kind of experimental and is likely to evolve.
I think that's it. A big thanks to gravity for all the help and the ELO lesson. 
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Awesome 
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Very nice 
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I don't think ELO would work out so well for OSL or MSL. In chess, they add rating points only for swiss or round robin tournaments. They never add or subtract points for knockout tournaments. But it will still be interesting to see.
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Calgary25980 Posts
Nice.
It's interesting to try to draw conclusions from these ratings and see if history backs them up.
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interesting. iloveoov was the most skilled BW player EVA.............
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SweeT!
What does ELO stand for?
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Good stuff! This matches quite well with intuition on who the best current players are.
On the first page (top 40) there are 16 terrans, 15 zerg, and 9 protoss. Surprisingly, almost as many zergs as terrans.
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8748 Posts
On September 11 2007 04:55 polarwolf wrote:
interesting. iloveoov was the most skilled BW player EVA.............
..? PoP already explained it best in the opening post: the highest peak shows the most dominant player. Skill isn't something that can be judged through something like an ELO ranking.
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On September 11 2007 04:33 PoP wrote:
Something everyone should know about ELO: it’s a 100% skill-based system. Success is not taken into account.
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France15446 Posts
Actually it only means that Oov's peak was the most ridiculous, which is a well known fact (although Savior came close to matching it).
You can say that Oov was the most skilled by far at that point, and that relatively to his opponents of the time he was the most dominant of them all, but comparing skills between two different "eras" is wrong imho, ELO or not.
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France15446 Posts
In other words, the ELO value can be seen as a skill measure, while the peak one can be seen as a dominance measure. Sounds pretty accurate to me this way.
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United States5262 Posts
ELO is the name of the guy who invented the system. Some Hungarian dude.
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is awesome32274 Posts
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51446 Posts
I find it funny that Boxer isn't even on the first page while someone like Darkelf is there.
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GrandInquisitor
New York City13113 Posts
If I had known you guys were doing this I would have suggested Glicko-2, a modification of ELO ( http://en.wikipedia.org/wiki/Glicko_rating_system ) instead; it's what's used on XBox Live and allows for Ratings Uncertainty and volatility and measures like that, making it in general far more accurate than plain vanilla ELO
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On September 11 2007 06:15 GTR-2-Go wrote:I find it funny that Boxer isn't even on the first page while someone like Darkelf is there.
ditto
Boxer isn't even on first page? we can't deny how skilled he is really 
darkelf... geez
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Don't bash Elfie, he rocks.
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France15446 Posts
On September 11 2007 06:19 GrandInquisitor wrote:If I had known you guys were doing this I would have suggested Glicko-2, a modification of ELO ( http://en.wikipedia.org/wiki/Glicko_rating_system ) instead; it's what's used on XBox Live and allows for Ratings Uncertainty and volatility and measures like that, making it in general far more accurate than plain vanilla ELO
We can totally change it if needed. Again, this is beta/experimental. I've heard about Glicko, but then forgot about it. Any other opinion? If it's officially better then we'll definitely change.
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France15446 Posts
On September 11 2007 06:21 Pressure wrote:Show nested quote +On September 11 2007 06:15 GTR-2-Go wrote:I find it funny that Boxer isn't even on the first page while someone like Darkelf is there. ditto Boxer isn't even on first page? we can't deny how skilled he is really darkelf... geez
ELO column represents the current strength. Unfortunately, Boxer has lost most of his recent matches, explaining his rather low rating.
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EPT
