Event: City Chess Swiss 2019-20

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Opponent Rating Result
Luis Ortiz Sanchez 1962 ½ - ½
Samuel Burrows 0 1 - 0
Widianto Siek 0 0 - 1
Simon C Moth 0 ½ - ½
D Ian Calvert 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

472 = (1962 + 400 * (2 - 1)) / 5)

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