Event: Easter Rapidplay

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Opponent Rating Result
Tristan Green 1349 0 - 1
Jayden Wang 890 0 - 1
George Butterworth 1096 1 - 0
Nick Tadd 1293 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

957 = (4628 + 400 * (1 - 3)) / 4)

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