Event: Mini League

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Opponent Rating Result
Lawrence Caldicott 1231 0 - 1
Pete Sheppard 1216 1 - 0
Samuel Rathjen 1487 0 - 1
Michael Carrigan 1157 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1173 = (5091 + 400 * (1 - 2)) / 4)

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