Event: Division 1

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Opponent Rating Result
Alun Richards 140 ½ - ½
Joshua Gittins 131 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-65 = (271 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Nick Bond 186 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-214 = (186 + 400 * (0 - 1)) / 1)