Event: Division 6

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Opponent Rating Result
Tim Bland 1532 ½ - ½
Tom Perkins 316 1 - 0
Roger P Newman 1446 0 - 1
Robert Wooding 1533 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1207 = (4827 + 400 * (1 - 1)) / 4)

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