Event: Div3

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Opponent Rating Result
Norman W Parkin 94 ½ - ½
Ronald S Harrison 113 0 - 1
Mohinderpal Samra 87 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

98 = (294 + 400 * (1 - 1)) / 3)

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