Event: Silver Rook

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Opponent Rating Result
Peter M Brannan 111 ½ - ½
Alan S Metcalfe 127 ½ - ½
Fraser Yang-Turner 66 0 - 1
Richard White 109 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

3 = (413 + 400 * (0 - 1)) / 4)

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