Event: Jan/Feb 2023 classical games

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Opponent	Rating	Result
Akshay Mandalia	1000	0 - 1
Akshay Mandalia	1000	½ - ½
Dhairya Kataria	1109	0 - 1

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

770 = (3109 + 400 * (0 - 2)) / 3)