Event: Three East

Opponent Rating Result
Jonathan P Marrow 1833 ½ - ½
Robert Parsons 1743 0 - 1
Venkatesh Subramanian 1818 ½ - ½
Tyrone R Jefferies 1581 0 - 1
David Helps 1686 1 - 0
Robert A Gordon 1465 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1688 = (10126 + 400 * (2 - 2)) / 6)

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