Event: Ivan Gromov League Season 2

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Opponent	Rating	Result
Tristan Wong	0	0(def) - 1
Johnny Chiu	0	0 - 0
George Perkins	0	½ - ½

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

0 = (0 + 400 * (0 - 0)) / 1)