Event: SCL Div 3

Opponent Rating Result
Simon RM Pearson 0 0 - 1
Niall Woodger 0 0 - 1
Charles Luther 0 0 - 1
John M Wiseman 0 ½ - ½
Simon M Redmill 0 0 - 1
Kevin Sawers 0 0 - 1
Simon Terleckis 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-343 = (0 + 400 * (0 - 6)) / 7)

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