Event: Bob Burns 2019

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Opponent Rating Result
John K Holliday 139 ½ - ½
Keith Marsh 127 0 - 1
Paul G Day 153 0 - 1
Simon Jones 72 ½ - ½
Alex O`Connell 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-142 = (491 + 400 * (0 - 3)) / 5)

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