Event: MCA Division 4

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Opponent Rating Result
Andrei Tamboi 1597 0 - 1
Michael Delaney 1700 0 - 1
Alex Langley 0 1 - 0
Howard D Sleeman 1452 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1087 = (4749 + 400 * (1 - 2)) / 4)

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