Event: Library Rapidplay February

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Opponent	Rating	Result
Zhuoyi Lin	989	0 - 1
Sam Stevenson	1072	0 - 1
Freya Hind	746	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

536 = (2807 + 400 * (0 - 3)) / 3)