Event: Norman Ellis (Open)

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Opponent Rating Result
Alex Howdle 1645 0 - 1
Matt Jones 1724 1 - 0
Clive W Davies 1875 1 - 0
Sam Jacklin 1924 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1992 = (7168 + 400 * (3 - 1)) / 4)

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