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killer ranking system query

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adam_147
adam_147
Posts: 8,033
14:39 Sat 27 Mar 10 (GMT)  [Link]  
Just wondering if someone can explain how the ranking system works in killer, ive pasted part of a result from earlier here:

"player A" 829.5 (-5.0), adam_147 825.7 (-5.1),

now do the maths and before the game "player A" was ranked 834.5 and i was ranked 830.8, so player A was ranked higher than me and yet i lost more ranking points than he/she did.

I must have missed something in how the system works, so can someone explain please .

Thanks.
Deleted User
(IP Logged)
14:50 Sat 27 Mar 10 (GMT)  [Link]  
http://www.funkysnooker.com/help#rankings

You might want to try and make sense of that if you haven't already.
adam_147
adam_147
Posts: 8,033
15:15 Sat 27 Mar 10 (GMT)  [Link]  
Ive read that but basically all the maths there shows that, if 2 players are beaten at the same game by someone with rank X, the player with the higher ranking loses more...

Take player A and player B beaten by player C, with ranks a,b and c respectively and with a > b > c. Difference is calcutaled as winners rank - losers rank. So let c - a (diff between A and C) be M and c - b (diff between B and C) be N. So N > M.

Ranking system calculations:

so player A loses 2 - 2^(M/100) and player B loses 2-2^(N/100)

N > M therefore (N/100) > (M/100) therefore 2^(N/100) > 2^(M/100) therefore 2 - 2^(N/100) < 2 - 2^(M/100) (inequality sign changes due to negative multiplier -1).

This shows that player B, the lower ranked one, loses less points than the higher ranked one. Including point 1) about ranking for game types in the link James posted is merely a scalar multiplier so has no effect, and point 2) about newbie modification is the same. Both players were <900 so edge modification does nothing.

So applying the maths in James' link still doesnt explain what happened...
Deleted User
(IP Logged)
15:38 Sat 27 Mar 10 (GMT)  [Link]  
stop moaning and part wiv ur points greedy ;p
virtuoso107
virtuoso107
Posts: 8,823
19:00 Sat 27 Mar 10 (GMT)  [Link]  
adam_147 said:
adam_147 825.7 (-5.1)


Naming and shaming will not be tolerated
adam_147
adam_147
Posts: 8,033
19:04 Sat 27 Mar 10 (GMT)  [Link]  
virtuoso107 said:
adam_147 said:
adam_147 825.7 (-5.1)


Naming and shaming will not be tolerated


he's a complete newbie though, worst player ive ever seen. its just stating fact really...

On topic, anyone got an explanation?
cue_power
cue_power
Posts: 6,380
19:28 Sat 27 Mar 10 (GMT)  [Link]  
I could be wrong...

But doesnt killer take points off on position?

You always lose less if you go out earlier...if you come 2nd you get hit the heaviest...

thats how i see it :S


Or its this...

D + E - R - R = Y.....is.......G - O / D?


Edited at 00:30 Sun 28/03/10 (GMT)
adam_147
adam_147
Posts: 8,033
20:16 Sat 27 Mar 10 (GMT)  [Link]  
it may go on position, that would be a reasonable explanation. except i went out earlier .

But it doesnt mention that anywhere i can see.
virtuoso147
virtuoso147
Posts: 2,932
04:52 Sun 28 Mar 10 (BST)  [Link]  
adam_147 said:
Ive read that but basically all the maths there shows that, if 2 players are beaten at the same game by someone with rank X, the player with the higher ranking loses more...

Take player A and player B beaten by player C, with ranks a,b and c respectively and with a > b > c. Difference is calcutaled as winners rank - losers rank. So let c - a (diff between A and C) be M and c - b (diff between B and C) be N. So N > M.

Ranking system calculations:

so player A loses 2 - 2^(M/100) and player B loses 2-2^(N/100)

N > M therefore (N/100) > (M/100) therefore 2^(N/100) > 2^(M/100) therefore 2 - 2^(N/100) < 2 - 2^(M/100) (inequality sign changes due to negative multiplier -1).

This shows that player B, the lower ranked one, loses less points than the higher ranked one. Including point 1) about ranking for game types in the link James posted is merely a scalar multiplier so has no effect, and point 2) about newbie modification is the same. Both players were <900 so edge modification does nothing.

So applying the maths in James' link still doesnt explain what happened...


Made me laugh!
adam_147
adam_147
Posts: 8,033
12:05 Sun 28 Mar 10 (BST)  [Link]  
im doing a degree in maths, i cant help myself .
cue_power
cue_power
Posts: 6,380
12:50 Sun 28 Mar 10 (BST)  [Link]  
Living up to your name Mr Maths
Deleted User
(IP Logged)
12:08 Mon 29 Mar 10 (BST)  [Link]  
I'm presuming the winner was a newbie...

Then to work this out it needs a slight bit of explanation and an example.

Lets say (for the sake of it) there were 5 players, A B C D and E. Say player A was a newbie and he won. The ranking scale would calculate the ranking points gained from each player and a loss for the others and put it down as 1 win from each player...

So, he would take X amount of points off player B, C, D and E. However, after each "game won" with a player, the newbie modification affecting each player would reduce, thus the result in losing more ranking points than another player if 2 different players were the same rank (Or very similar rank)

It's the only way I can see this situation happening. Sorry if its hard to understand, not that easy to type.
adam_147
adam_147
Posts: 8,033
20:15 Mon 29 Mar 10 (BST)  [Link]  
killer doesnt work like that on the games won though does it? you still have to play 100 games to lose newbie, and playing 11 x 10man killers doesnt make you lose your newbie tag, you have to play 100 games (and yes i know 11x9 is only 99). So i dont think the newbie modification would come into effect mid-game. I may be wrong, ill have to ask Nick or someone.

However if it did work like that, then the later you went out, the more points you would drop because the newbie modification gets less as they play more games. However i went out before the player in this scenario so that doesnt explain it .

He also wasn't a newbie if i remember correctly (thought i would point that out at the end...)
cue_power
cue_power
Posts: 6,380
20:23 Mon 29 Mar 10 (BST)  [Link]  
Lmfaoooo!

Adam you really are a donkey!

Heeeee Haaaaaaw!
adam_147
adam_147
Posts: 8,033
10:13 Tue 30 Mar 10 (BST)  [Link]  
that i may be, but im still above you in killer rankings derry .
Deleted User
(IP Logged)
11:03 Tue 30 Mar 10 (BST)  [Link]  
adam_147 said:
killer doesnt work like that on the games won though does it?


Yes it does. If you win a 10 man killer game you get 9 wins put onto your profile.
virtuoso147
virtuoso147
Posts: 2,932
11:39 Tue 30 Mar 10 (BST)  [Link]  
yerp
cue_power
cue_power
Posts: 6,380
11:53 Tue 30 Mar 10 (BST)  [Link]  
Whaaaaa!

How did i not think that!?!

I swear they make the rules up as they go
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killer ranking system query

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