Event: ECF Club

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Opponent Rating Result
Roshan Lavan 832 1 - 0
Parthasarathi Sahoo 0 1 - 0
Tanish Singh 1236 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

823 = (2068 + 400 * (2 - 1)) / 3)

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