Event: D&DCL Div 1

Opponent Rating Result
Derek A Jarvis 173 ½ - ½
D Martin Howard 177 0 - 1
Derek A Jarvis 173 0 - 1
D Martin Howard 177 ½ - ½
David Hulme 153 1 - 0
Steve Bracey 148 1 - 0
Andrew Robins 139 ½ - ½
Ranjit Nath 157 0 - 1
Adam Routledge 0 ½ - ½
David Smith 153 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

65 = (1450 + 400 * (2 - 4)) / 10)

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