Event: September/October rapidplay

Opponent Rating Result
Sahaj Singh 452 0 - 1
Harry Chan 1148 0 - 1
Harry Chan 1148 0 - 1
Zorian Luan 607 0 - 1
Zorian Luan 607 1 - 0
Guy Cain 1003 0 - 1
Guy Cain 1003 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

567 = (5968 + 400 * (1 - 6)) / 7)

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