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Event: Rated Friendlies

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Opponent Rating Result
Joshua Mullane 1200 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1200 = (1200 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Ernest Wilkinson 1414 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1814 = (1414 + 400 * (1 - 0)) / 1)