13.11 Combat ratings and rankings

Imperian has a system of ranking player vs. player combatants. You are  
not, however, automatically in the system. You must first reach level   
30, and then type JOIN COMBAT RANKINGS, to be put in the system.        

It should be noted that anyone caught trying to manipulate or abuse the 
system in a way that is obviously unfair, will be permanently banned    
from it.                                                                

Commands:
--------

JOIN COMBAT RANKINGS
   Puts you into the combat rankings system. You are automatically 
   assigned a rank of 1000.

COMBAT RANKINGS
   Shows the combat rankings list.

COMBAT STATUS <player>
   Shows the rating, win/loss record, and fight history of the player.

COMBAT CHALLENGE <player>
   This is how you challenge another player to a ranked fight. You must
   both be standing in an Arena Staging Grounds, and the other person 
   must choose to accept. Note: the challenger and challengee do not
   necessarily need to be the same staging grounds. Each of you will be
   charged half the combat rating of the other person. You may not
   challenge anyone whose combat rating differs more than 400 either up
   or down from yours.

   Once a fight is initiated, you have 10 minutes to fight it out, or 
   the fight is a draw.

   Once someone has won, each person's combat rating will be altered
   appropriately. Further, the winner will get 2/3 of the total gold 
   paid by both participants to use the Arena.


Formula:
-------

For those who are interested, the formula used to rate people is:

NewRating = OldRating + (K * (W - (1/(10^(-Dr/200)+1))))

K: A variable. If you've had less than 20 fights, K is 50.
   If you've had more than 20 fights:
     If your rating < 2100 then K = 32
     If your rating >= 2100 and < 2400 then K = 24
     If your rating >= 2400 then K = 16

W: A variable.
   If you won, W = 1.
   If you lost, W = 0.
   If it was a draw, W = 0.5.

Dr: Difference in Rating. It is your rating minus your opponents'.


See Also: HELP ARENA