Event: Norman Ellis

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Opponent Rating Result
Dale H Cullum 134 ½ - ½
Anthony Ibbitson 145 1 - 0
Marcin Skopinski 127 1 - 0
Tom Leah 171 0 - 1
Chris Wright 168 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

149 = (745 + 400 * (2 - 2)) / 5)

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