Event: u1650 Rapidplay League

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Opponent Rating Result
Terry Lowe 1453 1 - 0
Viktor Gorbunov 412 1 - 0
Terry Lowe 1453 0 - 1
Viktor Gorbunov 412 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1133 = (3730 + 400 * (3 - 1)) / 4)

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