Event: Rapidplay Cup u1451

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Opponent Rating Result
David Otaryan 750 1 - 0
David Otaryan 750 1 - 0
Rowan Eccleston 1336 0 - 1
Rowan Eccleston 1336 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1243 = (4172 + 400 * (3 - 1)) / 4)

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