Event: Hepolite (Rapidplay)

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Opponent Rating Result
Lee Crawford 1884 0 - 1
Lee Crawford 1884 0 - 1
Lee Boyes 1592 1 - 0
Lee Boyes 1592 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1638 = (6952 + 400 * (1 - 2)) / 4)

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