HomeFacebook Scrabble League Round 175 Division 6Click any result to see the two players' history
E =
Elo Value

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undefined u
  
Elo: 5030

undefined S
  
Elo: 5093

undefined K
  
Elo: 4997

undefined G
  
Elo: 5121

undefined L
  
Elo: 4830

undefined S
  
Elo: 4968

undefined L
  
Elo: 5080

undefined B
  
Elo: 5058

undefined B
  
Elo: 4923

undefined M
  
Elo: 5046

undefined D
  
Elo: 5112

undefined B
Elo: 5182
undefined B
398
undefined u
397
Elo:
+7.1
undefined B
455
undefined S
372
Elo:
+9
undefined K
415
undefined B
335
Elo:
-17.8
undefined G
478
undefined B
446
Elo:
-14.1
undefined B
428
undefined L
373
Elo:
+2.8
undefined B
405
undefined S
388
Elo:
+5.4
undefined L
396
undefined B
292
Elo:
-15.4
undefined B
428
undefined B
421
Elo:
-16.1
undefined B
428
undefined B
387
Elo:
+4.4
undefined B
341
undefined M
338
Elo:
+7.5
undefined B
487
undefined D
339
Elo:
+9.6
Progress this roundChange in Elo rating-17.6
for Bob BrooksBest score487 vs Sheryl Davidson
Total points scored4436 in 11 games
Average points per game403.2
Total margin125
Best margin148 vs Sheryl Davidson
Average margin11.3
 
Personal Bests for Bob Brooks

Top Score: 592
vs Pauline Cilia who scored 308 in round 160
 
Best Margin: 314
519 - 205 vs Sheryl Davidson in round 180
 
Best Joint Score: 1017
541 - 476 with Jacqui Pearce in round 162


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.