Event: Division B

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Opponent Rating Result
Istvan Karacsony 1843 1 - 0
Carl J Hetherington 2000 ½ - ½
Stephen W Berkley 1806 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2150 = (5649 + 400 * (2 - 0)) / 3)

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