Event: Ivan Gromov Online Schools Chess League

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Opponent	Rating	Result
Beau Goding	0	0 - 1
Fraser Yang-Turner	1383	0 - 1
Alexander Kapkin	0	1 - 0
Jaden Omoruyi	1271	0 - 1
Nick Lin	1100	1 - 0
Samvrit Subin	1703	1 - 0
Freddie Christou-Moore	0	1 - 0

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

837 = (5457 + 400 * (4 - 3)) / 7)