Event: IM Brown

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Opponent Rating Result
Peter Cooper 135 1 - 0
Paul RH Clarke 146 1 - 0
Chris Wright 171 0 - 1
Peter Shaw 194 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

162 = (646 + 400 * (2 - 2)) / 4)

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