Event: City Chess League 2016-17

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Opponent Rating Result
Mikhail Sedykh 0 0 - 1
B Peter A Andrews 0 ½ - ½
Nasarullah Sheikh 0 ½ - ½
D Ian Calvert 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-100 = (0 + 400 * (0 - 1)) / 4)

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