Event: IM Brown

Opponent Rating Result
Philip A Wood 84 ½ - ½
David L Pedro 145 ½ - ½
Michael Johnson 135 1 - 0
Kenneth L Marsden 92 1 - 0
John Brooke 96 ½ - ½
C Rodney S Mitchinson 78 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

305 = (630 + 400 * (3 - 0)) / 6)

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