Event: Ivan Gromov Online Schools Chess League

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Opponent Rating Result
Freddie Christou-Moore 0 1 - 0
Barnaby Wreford 1643 0 - 1
Ben Shorter 1542 0 - 1
Meikum Perumal Mahadevan 1007 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

948 = (4192 + 400 * (1 - 2)) / 4)

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