Event: Frank Terrill Trophy

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Opponent Rating Result
Derek A Stockhall 139 1 - 0
Mark A Cundy 172 ½ - ½
John E Crump 158 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

156 = (469 + 400 * (1 - 1)) / 3)

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