HomeFacebook Scrabble League Round 178 Division 9Click any result to see the two players' history
E =
Elo Value

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Linda P
  
Elo: 4754

Caroline S
  
Elo: 4839

Abdelaziz S
  
Elo: 4673

Judy C
  
Elo: 4652

Leila D
  
Elo: 4747

Nick M
  
Elo: 4788

Hilary T
  
Elo: 4735

Annie B
  
Elo: 4967

Terry S
  
Elo: 4649

Ro F
  
Elo: 4609

Nicholaus D
  
Elo: 4543

Avril S
  
Elo: 4520

David B
Elo: 4578
David B
370
Linda P
358
Elo:
+17.6
Caroline S
370
David B
269
Elo:
-4.4
Abdelaziz S
423
David B
374
Elo:
-8.8
Judy C
435
David B
315
Elo:
-9.5
Leila D
413
David B
347
Elo:
-6.6
Nick M
401
David B
301
Elo:
-5.5
Hilary T
416
David B
317
Elo:
-6.9
Annie B
425
David B
242
Elo:
-2.3
Terry S
338
David B
332
Elo:
-9.6
David B
387
Ro F
210
Elo:
+13.1
Nicholaus D
414
David B
366
Elo:
-13.2
David B
333
Avril S
330
Elo:
+10
Progress this roundChange in Elo rating-26.1
for David BrownBest score387 vs Ro Fernando
Total points scored3953 in 12 games
Average points per game329.4
Total margin-580
Best margin177 vs Ro Fernando
Average margin-48.3
 
Personal Bests for David Brown

Top Score: 528
vs Joseph Bartram who scored 140 in round 60
 
Best Margin: 388
528 - 140 vs Joseph Bartram in round 60
 
Best Joint Score: 1101
528 - 573 with in round 62


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.