Event: IM Brown Shield

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Opponent Rating Result
Michael Johnson 1759 ½ - ½
Climate Mupfiga 1779 1 - 0
Daniel Meredith 1830 1 - 0
Geoffrey D Brown 1715 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2071 = (7083 + 400 * (3 - 0)) / 4)

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