Event: Derby & District Cup QP

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Opponent Rating Result
Skott K May 0 ½ - ½
Alan F Downham 0 1 - 0
Richard P Temple 0 1 - 0
Martin Pettinger 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

200 = (0 + 400 * (2 - 0)) / 4)

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