Event: Division One

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Opponent Rating Result
Phil Bull 167 0 - 1
Golam S Ali 169 0 - 1
Robert Reynolds 149 ½ - ½
Lukasz Marcin Walijewski 145 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-143 = (630 + 400 * (0 - 3)) / 4)

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