Event: SCCA Division 1 19/20

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Opponent Rating Result
Timothy Lunn 182 0 - 1
Stephen Lewis 174 1 - 0
Phil Hopkins 178 ½ - ½
Edward Matthewson 177 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

178 = (711 + 400 * (1 - 1)) / 4)

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