Event: D&DCL Div 3

Opponent Rating Result
George Gledhill 1578 1 - 0
Yuriy Slobodyuk 1762 0 - 1
Philip Sheldon 1614 1 - 0
Naeem Iqbal 1681 1 - 0
Roger W Walker 1588 1 - 0
Philip Sheldon 1614 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1840 = (9837 + 400 * (4 - 1)) / 6)

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