Event: Division 3

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Opponent Rating Result
David Lacey 129 0 - 1
Alex Hope 119 ½ - ½
Tim P Gudgeon-Osterritter 128 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-141 = (376 + 400 * (0 - 2)) / 3)

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