Event: Div1

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Opponent Rating Result
David JF Woodhouse 124 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

524 = (124 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Paul Williams 142 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

142 = (142 + 400 * (0 - 0)) / 1)