Event: 3rd Portishead Rapid u18

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Opponent Rating Result
Dimitar Analiev 0 0 - 1
Rowan Ridge 0 0 - 1
Aanya Pahwa 0 0 - 1
Anvi Katkar 0 0 - 1
Forrest Whitworth 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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