Event: Division One

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Opponent Rating Result
Peter Hughes 151 1 - 0
Colin S Procter 156 ½ - ½
Paul RH Clarke 146 0 - 1
Robert A Dean 150 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

51 = (603 + 400 * (1 - 2)) / 4)

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