Event: Division 1

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Opponent Rating Result
David C Okike 2242 ½ - ½
Elliott CM Macneil 1905 1 - 0
John M Emms 2503 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2217 = (6650 + 400 * (1 - 1)) / 3)

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