Event: D Division

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Opponent Rating Result
Foivos Patrik Tzortzakos 1735 ½ - ½
Tom Gideonse 1576 0 - 1
Mikhail Ali 1631 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1647 = (4942 + 400 * (1 - 1)) / 3)

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