Event: Division 1 Rapidplay Cup

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Opponent Rating Result
Daniel Such 1435 1 - 0
Daniel Such 1435 0 - 1
Robert W Stephens 1812 0 - 1
Robert W Stephens 1812 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1424 = (6494 + 400 * (1 - 3)) / 4)

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