Event: JTCC South London

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Opponent Rating Result
Antony Dane 1509 0 - 1
Jan Birbee 746 1 - 0
Reece Waters 0 ½ - ½
James Lama 1296 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

788 = (3551 + 400 * (1 - 2)) / 4)

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