Event: Division Two

Opponent Rating Result
Peter L Loach 135 ½ - ½
Imogen Dicen 140 0 - 1
Glenn F Windows 138 ½ - ½
Yuriy Slobodyuk 130 ½ - ½
Andy Ambrose 144 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-23 = (687 + 400 * (0 - 2)) / 5)

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