Event: Norman Ellis

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Opponent Rating Result
John Brooke 113 1 - 0
Tom Leah 171 0 - 1
Mike Bramson 162 0 - 1
Randolph E Donahue 165 ½ - ½
Francesco L Labia 121 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-14 = (732 + 400 * (1 - 3)) / 5)

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