Event: Division 1

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Opponent Rating Result
John Jarmany 2160 0 - 1
Paul A Evans 2045 0 - 1
Kailash Narendran 1752 0 - 1
Andrew Hargreaves 1823 ½ - ½
John Whitfield 1782 1 - 0
Peter Dickinson 1565 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1721 = (11127 + 400 * (1 - 3)) / 6)

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Opponent Rating Result
Clive Edwards 1789 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1789 = (1789 + 400 * (0 - 0)) / 1)