Event: Division One

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Opponent Rating Result
Jana M Bellin 179 ½ - ½
Ann-Marie James 175 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

177 = (354 + 400 * (0 - 0)) / 2)

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Opponent Rating Result
Phil F Staley 109 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

509 = (109 + 400 * (1 - 0)) / 1)