Event: Eton Rapidplay 2019

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Opponent Rating Result
Toby Aderuga 0 1 - 0
Zahra Shahabuddin 90 0 - 1
Tejas Mulay 112 0 - 1
Charles Godwin 115 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-121 = (317 + 400 * (1 - 3)) / 4)

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