Event: Ivan Gromov Online Schools Chess League

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Opponent	Rating	Result
Alistair Craggs	0	½ - ½
Joshua Doyle	1471	1 - 0
Eeshaan Iyer	1539	1 - 0
Raghav Vaidya	1827	0 - 1

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

1309 = (4837 + 400 * (2 - 1)) / 4)