HomeFacebook Scrabble League Round 51 Division 13Click any result to see the two players' history
E =
Elo Value

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Seyi A
  
Elo: 4849

Pamela S
  
Elo: 5336

Anne T
  
Elo: 4791

Emma M
  
Elo: 4762

Denise L
  
Elo: 4745

Deborah A
  
Elo: 5258

Poko L
  
Elo: 4910

Damola O
  
Elo: 5302

Mutua N
  
Elo: 5119

Claire C
  
Elo: 4849

Peggy J
  
Elo: 4837

Douglas T
Elo: 4918
Douglas T
463
Seyi A
385
Elo:
+9.6
Pamela S
398
Douglas T
391
Elo:
-2
Anne T
452
Douglas T
339
Elo:
-16.2
First word
WAT


Elo:
+6.9 / -17.1
First word
EXTRAS


Elo:
+6.5 / -17.5
Deborah A
462
Douglas T
374
Elo:
-3
Poko L
447
Douglas T
353
Elo:
-12.3
Damola O
499
Douglas T
409
Elo:
-2.4
Douglas T
334
Mutua N
332
Elo:
+18.3
Douglas T
424
Claire C
366
Elo:
+9.6
Peggy J
446
Douglas T
373
Elo:
-14.7
Progress this roundChange in Elo rating-13.1
for Douglas TsangBest score463 vs Seyi Ajetunmobi
Total points scored3460 in 9 games
Average points per game384.4
Total margin-327
Best margin78 vs Seyi Ajetunmobi
Average margin-36.3
 
Personal Bests for Douglas Tsang

Top Score: 575
vs Sally Plotnek who scored 399 in round 169
 
Best Margin: 270
513 - 243 vs Susan McConnell in round 129
 
Best Joint Score: 1092
546 - 546 with Cheryl Dring in round 95


Notes on Ratings
Under the Elo ratings system, the winner of a game gains a number of ratings points and the losing player loses the same number. The number of points won or lost depends on the difference between the ratings of the two players; a player will gain more points by beating a higher-rated player than by beating a lower-rated player.

Where games have been completed, the chart above shows the actual number of ratings points passed from the loser to the winner. Where games are unfinished, two numbers are shown in the form A/B. A is the number of points to be transferred if the player in the row wins and B is the number of points if the player in the column wins.

For example
Mildred
Elo 5051
If Joe wins he will gain 9.5 rating points from Mildred but if Mildred wins she will gain 14.5 rating points from Joe. Mildred stands to earn more than Joe from winning the game because Joe is the higher rated player and is expected to win more often.
Joe
Elo 5123
E: 9.5 / 14.5

In the case of a draw, the lower rated player wins points from the higher rated player, but fewer points than if he or she had won the game.

The value of each game is based on the players' rating at the start of each round. At the end of the round, the points won and lost on each game are added up and the players' rating are adjusted and rounded to the nearest whole number for the next round.

The difference in two players' Elo ratings implies an expectation of how often each of them will win when playing each other. Under the system we use:

Notes on Statistics
μ (mu) is the mean score, ν (nu) is the median score and Mo is the mode. Mean, median and mode are three different kinds of averages. The mean score is the total number of points divided by the number of games played. The median score is the middlemost score (or the mean of the two middlemost scores) when they are sorted from high to low. The mode is the most frequent score and is only helpful after a large number of games.

σ (sigma) is the standard deviation. This is a measure of how consistent the player is. The smaller the value of σ, the more consistent. 68% of the player's scores are within one standard deviation above or below the mean and 95% are within two standard deviations.

Sk is median skewness. Skewness is a measure of how asymmetrical the graph is. There are many measures of skewness; we've chosen median skewness because it's the easiest to calculate! A positive value means there are more scores above the middle of the graph than below, a negative value vice versa.