Event: Bak

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Opponent Rating Result
Chris McConaghy 0 1 - 0
Will Lilburn-Quick 0 1 - 0
Simon Hopker 75 1 - 0
Andrew Walker 100 0 - 1
Werner Rieser 96 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

214 = (271 + 400 * (3 - 1)) / 5)

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