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Game Courier Ratings. Calculates ratings for players from Game Courier logs. Experimental.[All Comments] [Add Comment or Rating]I have corrected an inaccuracy in the description of the method used. It used to say that a higher rated player is expected to win a percentage of games equal to one quarter of the point difference between the ratings, capped at 100%. Although this works for a 400 point difference, it is inaccurate for other point differences. In particular, this formula predicts that the lower rated player would win more games for any point difference below 200, which is just crazy. Anyway, the examples I gave to illustrate the formula did not illustrate it, and examination of my code indicates that I did not use it. The actual formula, which the examples did illustrate, and which I did use in the code, is that a higher rated player may be expected to win a percentage of games equal to 50% plus one eighth of the point difference, capped at 100%.