Event: Hartley

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Opponent Rating Result
Marlon Espiritu 1751 ½ - ½
Robin Yeung 1818 1 - 0
Jeremi Ignasiak 1569 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1979 = (5138 + 400 * (2 - 0)) / 3)

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