Event: Derby & District Plate QP

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Opponent Rating Result
Edward Brown 0 1 - 0
Lee Garratt 0 1 - 0
Philip Sykes 0 1 - 0
Graham J Pace 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

300 = (0 + 400 * (3 - 0)) / 4)

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