Event: Division One

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Opponent Rating Result
Steven Briggs 191 1 - 0
Jana M Bellin 176 0 - 1
Frank Wood 146 1 - 0
John Staniforth 151 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

266 = (664 + 400 * (2 - 1)) / 4)

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