Event: Mini League

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Opponent	Rating	Result
Phil Higgins	1288	1 - 0
Michael Carrigan	1164	0 - 1
Andrii Huk	1882	0 - 1

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

1311 = (4334 + 400 * (1 - 2)) / 3)