Event: Derby & District Division 2

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Opponent Rating Result
Mircea-Marius Mesesan 2010 0 - 1
Ray Sawyer 1746 ½ - ½
David Smith 1820 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1725 = (5576 + 400 * (0 - 1)) / 3)

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