Event: Division 4B

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Opponent Rating Result
Graham Strickland 1430 ½ - ½
Doug May 1147 ½ - ½
Alexandra Hughes 1384 0 - 1
Rafal Cala 1411 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1143 = (5372 + 400 * (0 - 2)) / 4)

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