HomeFacebook Scrabble League Round 178 Division 1Click any result to see the two players' history
E =
Elo Value

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Adebiyi M
  
Elo: 5641

Matt K
  
Elo: 5686

Abi A
  
Elo: 5681

Susan E
  
Elo: 5621

Maureen L
  
Elo: 5546

Danny P
  
Elo: 5659

Charles M
  
Elo: 5643

Emmanuel E
  
Elo: 5581

Stewart H
  
Elo: 5557

Mike W
  
Elo: 5478

Debbie M
  
Elo: 5555

Amanda C
  
Elo: 5522

Rob M
Elo: 5592
Rob M
503
Adebiyi M
299
Elo:
+13.7
Matt K
457
Rob M
447
Elo:
-8.8
Rob M
454
Abi A
423
Elo:
+15
Rob M
429
Susan E
415
Elo:
+13
Maureen L
416
Rob M
403
Elo:
-13.6
Danny P
392
Rob M
314
Elo:
-9.7
Charles M
410
Rob M
395
Elo:
-10.3
Emmanuel E
488
Rob M
457
Elo:
-12.4
Stewart H
456
Rob M
404
Elo:
-13.2
Rob M
467
Mike W
442
Elo:
+8.2
Debbie M
387
Rob M
353
Elo:
-13.3
First word
TIT


Elo:
+9.6 / -14.4
Progress this roundChange in Elo rating-31.4
for Rob MartinBest score503 vs Adebiyi Mabadeje
Total points scored4626 in 11 games
Average points per game420.5
Total margin41
Best margin204 vs Adebiyi Mabadeje
Average margin3.7
 
Personal Bests for Rob Martin

Top Score: 673
vs who scored 339 in round 157
 
Best Margin: 334
673 - 339 vs in round 157
 
Best Joint Score: 1048
512 - 536 with Sarah Hart in round 175
 
Rob Martin was tournament champion
in rounds 142, 151, 158, 163, 165, 167, 168, 170, 171 & 172
 
Rob Martin had clean sweeps
in rounds 133 & 135


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.