Event: Division 6

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Opponent Rating Result
Geoffrey D Dring 1593 0 - 1
Vicky Sherley-Price 1300 1 - 0
Avina Soleimani 1509 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1334 = (4402 + 400 * (1 - 2)) / 3)

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