Event: BCL Division 2

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Opponent Rating Result
Alexander Potts 1706 1 - 0
Peter S Gill 1650 1 - 0
Alan Heath 1823 0 - 1
Vincent Edwards 1629 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1702 = (6808 + 400 * (2 - 2)) / 4)

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