Event: Dons Christmas Allegro

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Opponent Rating Result
Philip R Bonafont 2125 ½ - ½
John R Wickham 1741 1 - 0
David J Payne 1812 0 - 1
Stephen Livermore 1594 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1918 = (7272 + 400 * (2 - 1)) / 4)

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