Event: Bob Burns 2019

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Opponent Rating Result
Werner Rieser 100 1 - 0
David Barlow 173 ½ - ½
Andrew Bak 179 1 - 0
Phil R Watson 192 0 - 1
Paul G Day 153 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

319 = (797 + 400 * (3 - 1)) / 5)

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