Event: Knock-Out Cup

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Opponent	Rating	Result
John Harris	1696	1 - 0
Rhys Edwards	1546	1 - 0
Sehajdeep Singh	0	1 - 0

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

1481 = (3242 + 400 * (3 - 0)) / 3)