Event: Eton Rapidplay 2019

Opponent Rating Result
Alexander He Wang 90 0 - 1
Oliver Mortimer 87 0 - 1
Joshua Yarharm-Marsh 0 0 - 1
David Liu 68 0 - 1
Neil Siriwardana 20 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-187 = (265 + 400 * (1 - 4)) / 5)

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