Event: Div 2

Opponent Rating Result
David J Pickering 142 ½ - ½
Mike Allen 116 1 - 0
Peter M Collins 158 1 - 0
David J Pickering 142 ½ - ½
Paul Williams 140 ½ - ½
Jaime Castro 154 0 - 1
Shah Hussain 121 1 - 0
Frank K Pearson 111 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

286 = (1084 + 400 * (4 - 1)) / 8)

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