Event: Norman Ellis (Open)

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Opponent Rating Result
James P Collier 1734 1 - 0
Randolph E Donahue 1789 1 - 0
Sam Jacklin 1924 1 - 0
Warren B Dennison 1953 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2250 = (7400 + 400 * (4 - 0)) / 4)

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