Event: Crewe Rapidplay - Division 2

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Opponent Rating Result
Nigel Gardner 84 1 - 0
Nigel Gardner 84 0 - 1
Reinhard Haack 70 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

213 = (238 + 400 * (2 - 1)) / 3)

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