Event: Division 2

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Opponent Rating Result
David Al-Daini 1644 0 - 1
Anthony J Pimblett 1727 ½ - ½
Edward A Taylor 1678 0 - 1
Bart McHugh 1619 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1467 = (6668 + 400 * (0 - 2)) / 4)

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