Event: Rapidplay

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Opponent Rating Result
Mark Cox 0 1 - 0
Philip Crompton 0 1 - 0
Hector Glyn-Jones 0 1 - 0
Mark Cox 0 1 - 0
David Bradley 0 1 - 0
David Bradley 0 1 - 0
Mark Cox 0 1 - 0
Mark Cox 0 1 - 0
David Bradley 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (9 - 0)) / 9)

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