Event: Norman Ellis

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Opponent Rating Result
Neil Griffiths 131 1 - 0
Frank T Sheldrick 146 0 - 1
Jael J de Sousa Muachikape 132 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

270 = (409 + 400 * (2 - 1)) / 3)

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