Event: IM Brown

Opponent Rating Result
Bryan Wood 146 0 - 1
Ben D Science 127 ½ - ½
John Grasham 139 0 - 1
John M Allan 159 1 - 0
Andy J Bagley 158 ½ - ½
William Pinder 105 0 - 1
Michael Johnson 135 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-33 = (969 + 400 * (1 - 4)) / 7)

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