Event: Bob Burns 2019

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Opponent Rating Result
M Younis Quereshi 164 0 - 1
Phil R Watson 192 0 - 1
Ian Jewsbury 124 1 - 0
Christopher J Edwards 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

120 = (480 + 400 * (2 - 2)) / 4)

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