Event: Bob Burns 2019

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Opponent Rating Result
Paul G Day 153 ½ - ½
Andrew Bak 179 0 - 1
Bill Tait 133 0 - 1
Karl Rayner 0 1 - 0
Barry Thompson 76 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

108 = (541 + 400 * (2 - 2)) / 5)

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