HomeFacebook Scrabble League Round 178 Division 2Click any result to see the two players' history
E =
Elo Value

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Rachelle W
  
Elo: 5501

Dianne B
  
Elo: 5493

Jerry K
  
Elo: 5418

Pamela S
  
Elo: 5430

Terry B
  
Elo: 5423

Andrew E
  
Elo: 5480

Peter G
  
Elo: 5387

Michael C
  
Elo: 5383

Neil R
  
Elo: 5409

Colin W
  
Elo: 5349

Maeve C
  
Elo: 5424

Sarah H
  
Elo: 5379

Jacqui P
Elo: 5377
Rachelle W
463
Jacqui P
423
Elo:
-7.9
Dianne B
485
Jacqui P
361
Elo:
-8.1
Jacqui P
447
Jerry K
324
Elo:
+13.4
Pamela S
444
Jacqui P
379
Elo:
-10.2
Jacqui P
421
Terry B
353
Elo:
+13.6
Andrew E
490
Jacqui P
297
Elo:
-8.5
Peter G
506
Jacqui P
336
Elo:
-11.7
Michael C
464
Jacqui P
334
Elo:
-11.8
Jacqui P
422
Neil R
324
Elo:
+13.1
Jacqui P
386
Colin W
370
Elo:
+11
Jacqui P
437
Maeve C
291
Elo:
+13.6
Sarah H
drew with
Jacqui P
385-385
Elo:
0.1 to
Jacqui P
Progress this roundChange in Elo rating+6.6
for Jacqui PearceBest score447 vs Jerry Koker
Total points scored4628 in 12 games
Average points per game385.6
Total margin-271
Best margin146 vs Maeve Catney
Average margin-22.5
 
Personal Bests for Jacqui Pearce

Top Score: 587
vs Stephen Perry who scored 375 in round 98
 
Best Margin: 299
573 - 274 vs Sabiha Aisha Zaidi in round 25
 
Best Joint Score: 1135
587 - 548 with Kumba Tamba in round 148


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.