Event: Summer Rapidplay

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Opponent Rating Result
David Pizzi 1402 1 - 0
Andrew Austen 1588 0 - 1
Nick Tadd 1257 0 - 1
Vardhan Bunga 1100 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1237 = (5347 + 400 * (1 - 2)) / 4)

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