Event: Junior Rapid Play

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Opponent	Rating	Result
George Tagg	1193	1 - 0
Josiah McKie	916	0 - 1
Daniel Longley	1616	½ - ½

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

1242 = (3725 + 400 * (1 - 1)) / 3)