Event: D&DCL Div 1

Opponent Rating Result
Kevin J Dalley 165 0 - 1
Ranjit Nath 157 0 - 1
Derek A Jarvis 173 1 - 0
Kevin J Dalley 165 0 - 1
Maurice J Hill 150 1 - 0
Andrew J Mort 163 ½ - ½
Peter M Collins 144 ½ - ½
Janos J Wagenbach 138 ½ - ½
Andrew Toothill 162 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

113 = (1417 + 400 * (2 - 3)) / 9)

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