Event: IM Brown

Opponent Rating Result
Chris Jardine 1810 ½ - ½
Peter Hepworth 2053 0 - 1
Jim E Vickery 1827 ½ - ½
Richard J Webster 1994 1 - 0
Barry Marshall 1794 ½ - ½
Andrew B Mata 1931 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1835 = (11409 + 400 * (1 - 2)) / 6)

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