Event: Div4

Opponent Rating Result
Kevin J Gallagher 126 1 - 0
Edward Brown 113 0 - 1
Gary Monks 133 ½ - ½
Leslie J Fancourt 98 ½ - ½
Norman W Parkin 95 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

193 = (565 + 400 * (2 - 1)) / 5)

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