Event: Bak

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Opponent Rating Result
Martin Bond 1052 ½ - ½
Gary Kent 1123 1 - 0
Paul Kadzionis 1535 0 - 1
Lee Boyes 1574 1 - 0
Simon Jones 1407 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1498 = (6691 + 400 * (3 - 1)) / 5)

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