Event: D&DCL Div 2

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Opponent Rating Result
Ray J Forey 169 1 - 0
Luke S Alldread 159 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

164 = (328 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
David Hoddy 128 ½ - ½
Paul Williams 142 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-65 = (270 + 400 * (0 - 1)) / 2)