Event: Open 4-Board

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Opponent Rating Result
Tim M Joslin 1803 0 - 1
Kabir Pandit 2071 0 - 1
Tim M Joslin 1801 1 - 0
John W Bass 1939 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1704 = (7614 + 400 * (1 - 3)) / 4)

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