Event: Reading-Chess-Championships

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Opponent Rating Result
Diego Guisbert 1017 1 - 0
Stella Yu 1000 1 - 0
Shruthisriya Ganesh 1491 1 - 0
Shruthisriya Ganesh 1491 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1650 = (4999 + 400 * (4 - 0)) / 4)

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