Event: Division 4

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Opponent Rating Result
Leo Beacroft 1401 ½ - ½
Marian Talmacel 1598 0 - 1
Danny Flintoft 1884 0 - 1
Jonah Tomsett 1248 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1233 = (6131 + 400 * (0 - 3)) / 4)

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