Event: NSDCA Division 2

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Opponent Rating Result
Sandra G Blackburn 1567 ½ - ½
Sandra G Blackburn 1567 1 - 0
Julian N Hawthorne 1682 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1605 = (4816 + 400 * (1 - 1)) / 3)

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