Event: Division 5

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Opponent Rating Result
Peter Shaw 108 1 - 0
Robert Perry 58 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

483 = (166 + 400 * (2 - 0)) / 2)

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Opponent Rating Result
Paul Shelley 93 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

93 = (93 + 400 * (0 - 0)) / 1)