Event: IM Brown

Opponent Rating Result
Roger N Winterburn 120 ½ - ½
Stuart M Johnson 114 ½ - ½
John Foo 104 0 - 1
David A Patrick 160 ½ - ½
Simon Skinner 116 ½ - ½
Stephen Burton 109 ½ - ½
Zak Farley 125 1 - 0
Gary Hinchcliffe 158 0 - 1
Ben D Science 131 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

82 = (1137 + 400 * (1 - 2)) / 9)

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