Event: IM Brown

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Opponent Rating Result
Paul Solomons 1921 ½ - ½
Narita Hara 1240 1 - 0
Marek Gajdosz 2006 0 - 1
J Hall 1922 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1772 = (7089 + 400 * (1 - 1)) / 4)

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