Event: Eton Rapidplay 2019

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Opponent Rating Result
Keefe Theeng 35 1 - 0
Piers Chambers 48 1 - 0
Jenny Zhan 43 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

175 = (126 + 400 * (2 - 1)) / 3)

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