Event: City Chess Swiss 2014-15

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Opponent Rating Result
Michael R Wiltshire 0 1 - 0
Colin Cheek 0 1 - 0
Michael JM Rose 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (3 - 0)) / 3)

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