Event: A Division

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Opponent Rating Result
Joshua Pink 2068 ½ - ½
Christopher Hodgson 1846 1 - 0
Dave Toole 1901 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2072 = (5815 + 400 * (1 - 0)) / 3)

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