Event: Norman Ellis

Opponent Rating Result
Chris Wright 168 ½ - ½
Randolph E Donahue 165 1 - 0
Warren B Dennison 175 0 - 1
Marcin Skopinski 127 1 - 0
Richard Hersey 132 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

153 = (767 + 400 * (2 - 2)) / 5)

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