Event: D&DCL Div 2

Opponent Rating Result
Nigel D Marshall 115 ½ - ½
Geoffrey D Brown 148 1 - 0
Mike Allen 122 ½ - ½
David Hoddy 128 ½ - ½
Stephen Lamont 143 1 - 0
Duncan J Livsey 140 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

266 = (796 + 400 * (2 - 0)) / 6)

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