Algorithm of 400 Clan Ranking (Sep 30, 2011)

[josko.ri]

I am looking at your graphs and one thing isnt clear to me, weight factor. I thought weight factor is function of time passed from war and total number of games played in the war.

What I dont understand, KORT has the same weight (6%) for war vs G1 and for war vs LoW. but both of these factors are in huge favor of war vs G1, because there were 41 games vs G1 (19 vs LoW) and G1 war is from June while LoW war is from March.

so, did i interper factors for counting weight wrong, or there is some mistake in calculating?

Good question. Your assumption is correct, weight is a product of games in war times a decay factor.

I looked into the data. There were three recent wars between Kort and G1. April 2010 (41 games), Dec 2010 (18 games, probably CL3) and June 2011 (41 games). I'm guessing that the June 2011 had not been entered into the datafile yet at the time I generated that output (it is dated to July 1, but since the war is dated June 20, it is possible that it didn't make it yet).

Since this data was computed July 1 (I have this written right above the section), then for the wars in April 2010 and Dec 2010 we have weight calculated as:

KoRT-G1
July 2011 - April 2010 = 15 months old --> (24-15)/24 * 41 games ~= 15.4 weight points
July 2011 - Dec 2010 = 8 months old --> (24-7)/24 * 18 games ~= 12.8 weight points

KoRT-LOW
July 2011 - March 2011 = 3 months old --> (24-4)/24 * 19 games ~= 15.8 weight points

So these values seem to correspond with the relative weights (expressed as percentages) of 6%, 5% for the G1 games and 6% for the LOW game, respectively.

I do plan to update these old images to show the ratings basis for current ratings when I next update ratings for Sept 30. Sorry for the confusion caused by my non-updating of this info.

I am almost sure you are wrong. KORt played vs G1 3 times, April 2010, December 2010, and June 2011. Looking at your table, From April 2010 it is TIE (ended 15-15) with 0% weight, from Dec 2010 it is 78%(14-4) with 5% weight. that are all correct IMO.

but, from June 2010 it is calculated 73% win for KORT for match that ended 24-17 (59%), and it is weighted 6%, the same like match vs LoW which is 3 months older, and 23 games shorter, so according to my logic it should have have lower weight. link from the war that I think is calculated wrong is here, so you may check: viewtopic.php?f=442&t=143320

if you change data that will cause KORT decrease in ranking, because I think you overcalculated result in favor of G1, but I like being precise more than being biased

[BYUwonder11]

Josko, your mom taught you well, honesty is the best policy after all isn't it? Don't think this means we're easing up in the war though!

[Georgerx7di]

THOTA would be a good start....

Right, we'll get on that.

[FarangDemon]

I am looking at your graphs and one thing isnt clear to me, weight factor. I thought weight factor is function of time passed from war and total number of games played in the war.

What I dont understand, KORT has the same weight (6%) for war vs G1 and for war vs LoW. but both of these factors are in huge favor of war vs G1, because there were 41 games vs G1 (19 vs LoW) and G1 war is from June while LoW war is from March.

so, did i interper factors for counting weight wrong, or there is some mistake in calculating?

Good question. Your assumption is correct, weight is a product of games in war times a decay factor.

I looked into the data. There were three recent wars between Kort and G1. April 2010 (41 games), Dec 2010 (18 games, probably CL3) and June 2011 (41 games). I'm guessing that the June 2011 had not been entered into the datafile yet at the time I generated that output (it is dated to July 1, but since the war is dated June 20, it is possible that it didn't make it yet).

Since this data was computed July 1 (I have this written right above the section), then for the wars in April 2010 and Dec 2010 we have weight calculated as:

KoRT-G1
July 2011 - April 2010 = 15 months old --> (24-15)/24 * 41 games ~= 15.4 weight points
July 2011 - Dec 2010 = 8 months old --> (24-7)/24 * 18 games ~= 12.8 weight points

KoRT-LOW
July 2011 - March 2011 = 3 months old --> (24-4)/24 * 19 games ~= 15.8 weight points

So these values seem to correspond with the relative weights (expressed as percentages) of 6%, 5% for the G1 games and 6% for the LOW game, respectively.

I do plan to update these old images to show the ratings basis for current ratings when I next update ratings for Sept 30. Sorry for the confusion caused by my non-updating of this info.

I am almost sure you are wrong. KORt played vs G1 3 times, April 2010, December 2010, and June 2011. Looking at your table, From April 2010 it is TIE (ended 15-15) with 0% weight, from Dec 2010 it is 78%(14-4) with 5% weight. that are all correct IMO.

but, from June 2010 it is calculated 73% win for KORT for match that ended 24-17 (59%), and it is weighted 6%, the same like match vs LoW which is 3 months older, and 23 games shorter, so according to my logic it should have have lower weight. link from the war that I think is calculated wrong is here, so you may check: viewtopic.php?f=442&t=143320

if you change data that will cause KORT decrease in ranking, because I think you overcalculated result in favor of G1, but I like being precise more than being biased

What I had written was that the KoRT match that ended in June 2011 (24-17 = 59% win) was likely not in the data set when I calculated ratings at that time.

The 73% win is not a mistaken calculation of this June match - it is a separate match:
KoRT G1 29 11 04/29/10 (73% win)

Btw, the war Kort vs G1 (24-17) 06/20/11 is in my data file, so my theory is that it got added right after I calculated those rankings.
One thing that may be confusing you is that you assume the war entries on that line are listed in chronological order. They are not. They are listed in order of decreasing weight, which is not necessarily chronological order, but does roughly follow this.

FYI this was the tie:

KoRT G1 15 15 07/26/09

This war was just within 2 years, so it got included. While a 0% weight is displayed, the weight applied was actually somewhere between 0% and 1% but it got rounded for the display.

[Chariot of Fire]

It's very straightforward:

Actually, the 2 results are same, for
T+(BT^2)/2=(c1x+c2)/L=>
T+(BT^2)/2=c1x/L+c3,
since c2/L=constant=c3

j/k. I haven't a f'in clue. Glad FD has.

[VampireM]

It's very straightforward:

Actually, the 2 results are same, for
T+(BT^2)/2=(c1x+c2)/L=>
T+(BT^2)/2=c1x/L+c3,
since c2/L=constant=c3

j/k. I haven't a f'in clue. Glad FD has.

he actually doesnt.. just making it up as he goes..

[FarangDemon]

I haven't heard from jigger in a while.
Anybody want to help me by tallying the wars that have concluded since Aug 31?

[Gunn217]

I haven't heard from jigger in a while.
Anybody want to help me by tallying the wars that have concluded since Aug 31?

I think that I saw him post in a game somewhere that he was back yesterday. You might PM him and see what's up. If he doesn't want to do it, let me know and I'll help you. Just tell me what to do.

[FarangDemon]

I haven't heard from jigger in a while.
Anybody want to help me by tallying the wars that have concluded since Aug 31?

I think that I saw him post in a game somewhere that he was back yesterday. You might PM him and see what's up. If he doesn't want to do it, let me know and I'll help you. Just tell me what to do.

Thanks, Gunn217. You're on the top of my volunteer list if jigger is busy.

[FarangDemon]

Hello Sports Fans,

Gunn217 will be taking over jigger1986's volunteer responsibilities. We should have an update out within the week.

I'd like to publicly thank jigger for helping me with this. I wouldn't have been motivated to tally up everything myself, so if it were not for his efforts this enterprise may never have gotten off the ground.

And of course, thanks to everybody who helped me hone this thing to be a more useful and reliable rankings system. And thanks to the community's positive support.

Cheers,
FD

[jigger1986]

Thanks for the praise FD and thanks for your dedication to the site in developing what is widely considered the best ranking system on CC.
Im sorry I had to leave on no notice at all, Ive been trying severely limit my time on CC and although I enjoyed being the stats collector in this initiative, I simply dont have the time anymore.

Anyway thanks again FD, good luck with the system!

-jig

[josko.ri]

I am excited to see new rankings. it will be interestimng to see how top 8 playing vs each other will have influence to the rankings

[FarangDemon]

Rankings updated. Special thanks to Gunn217 who is now helping me compile clan war data.

All charts and ratings basis for each clan are updated.

I took out the provisional ranking - makes things simple to have just one ranking. Any clan with under 150 weight points won't be displayed until they get 150 weight points.

[Great-Ollie]

Sweet thanks guys always enjoy new rankings! One clan i have noticed on the rise is the Pig Renters! Good job guys ranked 15th is very good! Also congrats to KORT number 1!

[jefjef]

Why is TOFU listed?

[John Deere]

So you could be ranked one lower.... Get real man....

[Chariot of Fire]

Well done FD & Gunn....excellent job. And thanks for taking the extra trouble to show historical data, line graphs etc. Really informative

To answer jefjef....I guess because TOFU still exists and has a series of results on 2011. Although the clan is no longer competitive it may be in future if those members still in it wish to resurrect it and/or add new members. Dako and cachejob probably hold final sway on that, just they are busy/away for the next month or so and a decision hasn't been reached.

I think FD's system incorporates aging anyway, so if TOFU never face a challenge again then they'll slip down the rankings.

I don't think you can just write the clan off (and all its results) in the event it becomes active in the near future.

[benga]

How come there's no 1st Regiment on ranking?

[Leehar]

How come there's no 1st Regiment on ranking?

Read FD's post

I assume it's because there are no longer provisional rankings, so because they probably have less that 150 weighting points, they don't make the list.

Also FD, I'm still curious on how a 54% win over Botfm is more valuable for Tofu then a 71% win for them previously?
And then, we can't copy from the Data file ourselves anymore?

[benga]

How come there's no 1st Regiment on ranking?

Read FD's post

I assume it's because there are no longer provisional rankings, so because they probably have less that 150 weighting points, they don't make the list.

Also FD, I'm still curious on how a 54% win over Botfm is more valuable for Tofu then a 71% win for them previously?
And then, we can't copy from the Data file ourselves anymore?

I have read it, but seems to me they have completed couple of wars this year, maybe I am wrong...

[padsta]

Sweet thanks guys always enjoy new rankings! One clan i have noticed on the rise is the Pig Renters! Good job guys ranked 15th is very good! Also congrats to KORT number 1!

We should be higher next month too when the AOC victory is factored in. it's good to see a few new clans rising up, the clan scene is very strong at the moment

[Leehar]

Lots of upsets or near upsets in the ACC. I'm looking forward to us dropping a ton against mm.

[Dako]

Good to see this going on. And I am also glad that THOTA/TOFU set a record for the top score (1375) which is yet to be beaten.

[josko.ri]

Good to see this going on. And I am also glad that THOTA/TOFU set a record for the top score (1375) which is yet to be beaten.

That is the fact that should be added IMO (high score ever per clan). I think whoever wins Kort- Empire war will beat that high score because both clans are right now very close to achieve it.

[Leehar]

Good to see this going on. And I am also glad that THOTA/TOFU set a record for the top score (1375) which is yet to be beaten.

For the top defeats in the last year?
Either way, I think whoever wins the Empire-Kort battle could trump that?

Otherwise, It's also nice to see how the top 4 in the ranking really are the top 4 in the C Cup as well!