Event: Division Two

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Opponent Rating Result
Samuel Tombs 144 ½ - ½
Chris J Todd 172 0 - 1
Jagdeep Dhemrait 174 0 - 1
Ronnie Cohen 151 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-40 = (641 + 400 * (0 - 2)) / 4)

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