Event: 4 Board League B

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Opponent Rating Result
Paul Solomons 1872 0 - 1
Gerard P Killoran 2052 0 - 1
Paul Solomons 1906 ½ - ½
Mark W Rogerson 2070 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1675 = (7900 + 400 * (0 - 3)) / 4)

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