Event: Arjay Trophy

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Opponent Rating Result
Richard Allis 199 0 - 1
Zana Aziz 128 1 - 0
Peter F Mason 148 ½ - ½
Guillermo Curras Lorenzo 145 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

255 = (620 + 400 * (2 - 1)) / 4)

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