Event: Eton Rapidplay 2019

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Opponent Rating Result
Jonathan CH Lee 106 0 - 1
Harry Proffitt 0 ½ - ½
Benjamin Pickwick 102 0 - 1
Riya Sri-Ram 62 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-233 = (270 + 400 * (0 - 3)) / 4)

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