Event: OTB Rapid Championship

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Opponent Rating Result
Tu Senan 1597 0 - 1
Ashwin Anjulan 1403 0 - 1
Jean L Mara 1082 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1227 = (4082 + 400 * (1 - 2)) / 3)

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