Event: Norman Ellis

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Opponent Rating Result
Dale H Cullum 149 0 - 1
John Grasham 129 1 - 0
Randolph E Donahue 146 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

8 = (424 + 400 * (1 - 2)) / 3)

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