Event: Division Two

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Opponent Rating Result
Mike J Groombridge 1697 0 - 1
Andrew S Whitten 1732 0 - 1
Steve A Edwards 1725 0 - 1
Arjun Pyda 1780 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1334 = (6934 + 400 * (0 - 4)) / 4)

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