Event: Bob Burns 2019

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Opponent Rating Result
Andrew Walker 100 1 - 0
Chris Wright 168 1 - 0
Mark D Crowther 185 0 - 1
David Barlow 173 ½ - ½
Jamie Kubisa 146 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

314 = (772 + 400 * (3 - 1)) / 5)

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