Event: City Chess Swiss 2018-19

Opponent Rating Result
Peter W Rose 0 1 - 0
Azmiddin Aminov 0 1 - 0
D Ian Calvert 0 ½ - ½
B Peter A Andrews 0 0 - 1
Steven JF Walsh 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

80 = (0 + 400 * (2 - 1)) / 5)

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