Event: Division X

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Opponent Rating Result
Phillip Goodings 1501 0 - 1
Mithran Subburaj 1254 0 - 1
Zhixing Bai 1132 ½ - ½
Andrew Cleminson 1251 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

985 = (5138 + 400 * (0 - 3)) / 4)

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