Event: SCL Div 1

Opponent Rating Result
Richard Thurstans 1691 1 - 0
Paul S Janota 1900 ½ - ½
David J Holmes 1783 ½ - ½
Richard D Perrin 1795 ½ - ½
Helen Archer-Lock 1705 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1935 = (8874 + 400 * (2 - 0)) / 5)

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