Event: rapidplay 24/25

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Opponent Rating Result
Graham Robertson 0 1 - 0
Graham Robertson 0 1 - 0
Robert Wall 0 0 - 1
Robert Wall 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

0 = (0 + 400 * (2 - 2)) / 4)

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