Event: Bob Burns 2019

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Opponent Rating Result
M Younis Quereshi 164 0 - 1
Alex O`Connell 0 0 - 1
Simon Jones 72 ½ - ½
Werner Rieser 100 1 - 0
Ian Jewsbury 135 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-66 = (471 + 400 * (1 - 3)) / 5)

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