Event: Christmas Rapidplay

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Opponent Rating Result
Freya Hind 853 1 - 0
Jayden Wang 959 1 - 0
Tashil Lankapura 1490 0 - 1
Eva Harris 1104 1 - 0
Geoffrey Howsden 1477 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1417 = (5883 + 400 * (4 - 1)) / 5)

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