Event: Hillingdon Div 2

Opponent Rating Result
Xavier Cowan 1908 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1508 = (1908 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Mark Connor 1440 ½ - ½
Evangelos Maltezos 1646 1 - 0
James Lyons 1627 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1704 = (4713 + 400 * (1 - 0)) / 3)