Event: Division B

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Opponent Rating Result
Keith A Wilcox 120 ½ - ½
H Grundy 100 1 - 0
Blaine McGrady 144 ½ - ½
Paul O'Mara 140 1 - 0
Blaine McGrady 144 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

290 = (648 + 400 * (2 - 0)) / 5)

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