Event: Kingston Blitz - July

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Opponent Rating Result
Graham P Alcock 0 0 - 1
Maks Gajowniczek 0 0 - 1
Stephen Moss 0 0 - 1
Hamzah Malik 0 0 - 1
Jimmy Kerr 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 5)) / 5)

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