Event: SCCA Division 1 19/20

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Opponent Rating Result
Leon P Burnett 167 ½ - ½
Philip J Hutchings 162 1 - 0
David E Brown 159 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

296 = (488 + 400 * (1 - 0)) / 3)

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