Event: Frank Terrill Trophy

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Opponent Rating Result
Martin D Smyth 160 ½ - ½
Robert Marks 135 ½ - ½
Gideon Vecht 155 1 - 0
John E Crump 158 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

152 = (608 + 400 * (1 - 1)) / 4)

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