Event: Mini League

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Opponent Rating Result
John Hipshon 123 1 - 0
Peter J Clark 111 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

517 = (234 + 400 * (2 - 0)) / 2)

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Opponent Rating Result
Pete Farrell 115 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

115 = (115 + 400 * (0 - 0)) / 1)