Event: Hammersmith

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Opponent Rating Result
Horace Leung 0 1 - 0
Elliot Guillet 1135 0 - 1
Rico Wan 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

245 = (1135 + 400 * (1 - 2)) / 3)

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