Event: Summer League (Knockout Stage)

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Opponent Rating Result
Jeffrey Blumsom 1805 1 - 0
Jeffrey Blumsom 1805 ½ - ½
Benjamin Lappin 1853 0 - 1
Benjamin Lappin 1853 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1729 = (7316 + 400 * (1 - 2)) / 4)

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