Event: Hillingdon Div 2

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Opponent Rating Result
Cristian Delendrea 1597 0 - 1
Gabriele Martellotta 1423 1 - 0
Alexander Horwood 1557 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1526 = (4577 + 400 * (1 - 1)) / 3)

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