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Event: U1825 Group A

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Opponent Rating Result
Behzad Parnian 152 1 - 0
Granville Hill 152 1 - 0
Ian B Chester 130 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

545 = (434 + 400 * (3 - 0)) / 3)

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