Event: MCA Division 3

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Opponent Rating Result
Alan Jackson 1697 0 - 1
R Duncan Rennie 1492 0 - 1
Haroon Malik 1487 1 - 0
Paul J Massey 1746 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1406 = (6422 + 400 * (1 - 3)) / 4)

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