Event: Arjay Trophy

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Opponent Rating Result
Kenneth L Marsden 0 ½ - ½
Xavi Gomez Videl 0 ½ - ½
Randolph E Donahue 1781 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

727 = (1781 + 400 * (1 - 0)) / 3)

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