Event: IM Brown

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Opponent Rating Result
Chris G Willey 1777 ½ - ½
Harry Wilson 1670 1 - 0
Jim R Postill 1473 1 - 0
Samiksha Yerabati 1043 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1791 = (5963 + 400 * (3 - 0)) / 4)

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