Event: Eton Rapidplay 2019

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Opponent Rating Result
Ernest Tan 88 1 - 0
Dev Atara 107 0 - 1
Jack Chaudhury 104 1 - 0
George Ivanov 159 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

215 = (458 + 400 * (2 - 1)) / 4)

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