Event: Division 4

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Opponent Rating Result
Hanif Zaman 1649 ½ - ½
Jonathan Rooney 1570 1 - 0
J Dave H Hair 1708 1 - 0
Dave L Ramsey 1592 1 - 0
Kevin Cox 1619 0 - 1
John S Marsh 1703 0 - 1
John S Marsh 1692 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1648 = (11533 + 400 * (3 - 3)) / 7)

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Opponent Rating Result
Kevin Cox 1609 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1209 = (1609 + 400 * (0 - 1)) / 1)