Event: Division 1

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Opponent Rating Result
David J Horton 159 0 - 1
Tim P Gudgeon-Osterritter 0 1 - 0
Steve J Dyer 128 ½ - ½
Jonathan Fowler 169 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

114 = (456 + 400 * (1 - 1)) / 4)

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