Event: Division Three

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Opponent Rating Result
Adam Routledge 1778 0 - 1
Roger Threlfall 1683 ½ - ½
Arnold Peace 1703 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1588 = (5164 + 400 * (0 - 1)) / 3)

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Opponent Rating Result
Joe Tipping 1400 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1000 = (1400 + 400 * (0 - 1)) / 1)