Event: Barrow

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Opponent Rating Result
Samuel Riggs 1552 1 - 0
Tung Nguyen 0 ½ - ½
William B Drennan 1722 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1225 = (3274 + 400 * (1 - 0)) / 3)

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