Event: IM Brown

Opponent Rating Result
Anthony Ibbitson 1748 0 - 1
Chris Jardine 1813 1 - 0
Peter Micklethwaite 2001 0 - 1
Brian Ward 1240 1 - 0
Geoffrey D Brown 1836 ½ - ½
Owen R Robson 1758 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1799 = (10396 + 400 * (3 - 2)) / 6)

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