Event: Crewe Rapidplay - Division 1

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Opponent Rating Result
David P Price 113 0 - 1
David P Price 113 1 - 0
Harry Gardiner 104 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-23 = (330 + 400 * (1 - 2)) / 3)

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