Event: Rapidplay

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Opponent Rating Result
Keith A Wilcox 131 1 - 0
Keith A Wilcox 131 0 - 1
Leslie Hughes 99 1 - 0
Frank Bishop 104 0 - 1
Frank Bishop 104 0 - 1
Dave C Hartley 117 0 - 1
Dave C Hartley 117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

58 = (803 + 400 * (3 - 4)) / 7)

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