Event: Division 3

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Opponent Rating Result
Alastair Speirs 1459 1 - 0
Perry Evans 1630 0 - 1
Amandeep Singh 1510 0 - 1
David W Adam 1760 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1390 = (6359 + 400 * (1 - 3)) / 4)

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