Event: White Knight Chemicals KO - Under 10000

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Opponent	Rating	Result
Piran Wills	1515	0 - 1
Piotr Ruszelak	1784	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1250 = (3299 + 400 * (0 - 2)) / 2)