Event: Arjay Trophy

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Opponent Rating Result
Neil Griffiths 1565 1 - 0
Bernie T Hare 1800 1 - 0
Randolph E Donahue 1851 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1872 = (5216 + 400 * (2 - 1)) / 3)

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