Event: IM Brown

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Opponent Rating Result
Peter Micklethwaite 1972 0 - 1
Peter Rawcliffe 1764 1 - 0
Keith Thompson 1868 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1735 = (5604 + 400 * (1 - 2)) / 3)

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