Event: Individual Results Sent For Grading

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Opponent Rating Result
Luke S Boumphrey 1976 0 - 1
James P Rothwell 1908 ½ - ½
Steven Lee 1927 ½ - ½
Alistair Bond 1660 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1668 = (7471 + 400 * (0 - 2)) / 4)

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