Event: Roger Goldsmith Div 2

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Opponent Rating Result
Ethan Wood 0 0 - 1
Cristiano Zancarli 1593 0 - 1
Olusegun Aribido 1250 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

548 = (2843 + 400 * (0 - 3)) / 3)

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