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Event: Season 1 Division 1

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Opponent Rating Result
Gary Murphy 2055 0 - 1
Zheming Zhang 0 0 - 1
Graeme Oswald 2204 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1286 = (4259 + 400 * (1 - 2)) / 3)

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