Event: Knock-Out Cup

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Opponent	Rating	Result
Franklin Page	1400	½ - ½
David Copson	1517	1 - 0
Jonathan Fowler	1923	0 - 1

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

1613 = (4840 + 400 * (1 - 1)) / 3)