Event: SCCA Division 2 19/20

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Opponent Rating Result
Mark J Weidman 119 1 - 0
David E Brown 159 1 - 0
Stephen Lewis 174 0 - 1
Jan Balogh 168 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

255 = (620 + 400 * (2 - 1)) / 4)

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