Event: Division A

Opponent Rating Result
Jakub Sosinski 1838 ½ - ½
Tak-Shing Chan 0 ½ - ½
Alan Pidcock 1811 ½ - ½
David E Aspinall 1733 1 - 0
David E Aspinall 1733 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1583 = (7115 + 400 * (2 - 0)) / 5)

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