Event: Easter 2023 u-1400 rapidplay

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Opponent Rating Result
Sophie Mitran 969 1 - 0
Zach Jones 1037 0 - 1
Ayush Bansal 838 0 - 1
Raul Parmar 790 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

809 = (3634 + 400 * (1 - 2)) / 4)

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