Event: 6th Somerset New Year Intermediate

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Opponent Rating Result
Alastair JD Marston 1707 0 - 1
Dave J Williams 1646 ½ - ½
David B McGeeney 1714 ½ - ½
Grant Daly 1602 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1567 = (6669 + 400 * (0 - 1)) / 4)

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