6. Can you give me an example calculation?
Xplorers to 15  John  Tim 
Game Score  16  9 
Current Ranking Score  150  120 
Game Count  30  5 
First cap the scores to the maxpoints and normalise to 100:
Score John = min( points , maxPoints ) / maxPoints * 100 = 15 / 15 * 100 = 100
Score Tim = min( 9 , 15 ) / 15 * 100 = 9 / 15 * 100 = 60
Now calculate John's score:
A) winlosefactor:
WLF = +1 (John won, so he RECEIVES points)
B) diffopponentfactor:
They played each other 1 time before so opponentCount = 1
gameCount > 10, so:
DOFa = opponentCount / gameCount  0.1 = 1 / 30  0.1 = 0.03  0.1 = 0.07
This value should always fit in the range of 0  0.5 (minmax( 0 > DOF < 0.5 ) = 0
DOF = 1  0 * 2 = 1 (so this is optimal)
C) diffrankingfactor:
DRFa = ranking John  ranking Tim = 150  120 = 30
DRFb = minmax( 250 > DRFa < 250 ) = 30
DRF = (250  DRFb) / (2*250) = (250  30) / 500 = 220 / 500 = 0.44
D) diffscorefactor:
DSFa = score John  score Tim = 100  60 = 40
DSF = minmax( 0 > DSFa < 50 ) = minmax( 0 > 50 < 50 ) = 40
Score John = WLF * DOF * DRF * DSF = +1 * 1 * 0.44 * 40 = +18 ranking points
Now calculate Tim's score:
A) WFL = 1 (Tim lost so LOSES points)
B) DOFa = 1 / 5  0.1 = 0.2  0.1 = 0.1
DOF = 1  0.1 * 2 = 0.8
C) DRFa = 120  150 = 30
DRFb = 30
DRF = (250 + 30) / 500 = 0.56
( note: 0.56 (DRF Tim) + 0.44 (DRF John) = always 1 )
D) DSFa = 80  130 = 50
DSF = absoluut( 50 ) = 40
(note: always equal for both players)
Score Tim = WLF * DOF * DRF * DSF = 1 * 0.8 * 0.56 * 40 = 18 ranking points
(note: In most cases the ranking points are the negative of each other)
