Event: 6-Board Division 2

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Opponent Rating Result
Ahmet BH Hoscan 149 0 - 1
Peter T Perkins 120 ½ - ½
J Gerry Johnstone 128 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-1 = (397 + 400 * (0 - 1)) / 3)

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