Event: Rockhammer Cup

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Opponent Rating Result
Rebecca Ewart 716 1 - 0
Rebecca Ewart 716 1 - 0
Bijan Lotfi 1325 0 - 1
Bijan Lotfi 1325 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1221 = (4082 + 400 * (3 - 1)) / 4)

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