Event: 3rd Cornwall Online League

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Opponent Rating Result
Y Jan Rodrigo 0 0 - 1
Nigel J Kirkman 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Christine F Constable 0 0 - 1
Simon Jenkins 1570 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

785 = (1570 + 400 * (1 - 1)) / 2)