Event: Brentwood

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Opponent Rating Result
Kethan Medapati 834 ½ - ½
Thomas Baker 0 1 - 0
George Nanayakkara 1056 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

630 = (1890 + 400 * (1 - 1)) / 3)

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