Event: Division B

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Opponent Rating Result
Paul O'Mara 1690 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1290 = (1690 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Robert Hart 1674 0 - 1
Chris Stallard 1423 1 - 0
Richard Smith 1521 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1539 = (4618 + 400 * (1 - 1)) / 3)