Event: U1650 Cup

Opponent Rating Result
Simon Riley 1698 0 - 1
William Gu 1623 ½ - ½
Melvin Steele 1608 ½ - ½
Piotr Dolewka 1510 0 - 1
Hugo Smith 1495 1 - 0
Melvin Steele 1608 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1457 = (9542 + 400 * (1 - 3)) / 6)

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