Event: B&DCL Div 3

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Opponent Rating Result
Paul A Jackson 1698 ½ - ½
Thomas Trach 1732 0 - 1
E James Schumacher 1683 0 - 1
Richard D Perrin 1794 ½ - ½
John Bassinder 1721 ½ - ½
WG Belcher 1800 ½ - ½
Andrew Manson 1683 1 - 0
E James Schumacher 1807 0 - 1
Richard Ormesher 1700 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1602 = (15618 + 400 * (1 - 4)) / 9)

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