Event: Division 2

Opponent Rating Result
Timothy Lunn 2025 0 - 1
Simon Wilks 1916 0 - 1
Robert R Sanders 2035 ½ - ½
Stephen Lewis 1921 ½ - ½
Simon Riley 1749 1 - 0
Steve Lovell 1786 ½ - ½
Les J Jones 1727 0 - 1
Steve Lovell 1846 ½ - ½
Andrew J Donnelly 1809 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1735 = (16814 + 400 * (1 - 4)) / 9)

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