Event: D&DCL Div 3

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Opponent Rating Result
Andrew Wathen 1626 0 - 1
Chris Lovell 1622 0 - 1
Naeem Iqbal 1465 1 - 0
Philip Sheldon 1637 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1488 = (6350 + 400 * (1 - 2)) / 4)

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