Event: City Chess Swiss 2018-19

Opponent Rating Result
Brendan Whitworth 0 ½ - ½
Lee Adeola 0 1 - 0
Ray P Hamilton 0 ½ - ½
David R Chambers 0 ½ - ½
Shujaat Ishaq 0 0 - 1
Inga Jirgensone 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

67 = (0 + 400 * (2 - 1)) / 6)

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