Event: Bob Burns 2019

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Opponent Rating Result
Andrew Bak 179 ½ - ½
Sam Scurfield 137 ½ - ½
Karl Rayner 0 1 - 0
Keith Marsh 127 0 - 1
Chris Wright 171 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

43 = (614 + 400 * (1 - 2)) / 5)

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