Event: Division 2 West

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Opponent Rating Result
Oliver T Isaac 126 1 - 0
Jim Lobley 158 ½ - ½
Darren Freeman 147 0 - 1
Paul Humphreys 135 1 - 0
Adrian N Walker 140 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

221 = (706 + 400 * (2 - 1)) / 5)

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