Event: Ivan Gromov League Season 2

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Opponent	Rating	Result
Zi Jian Tang	0	1 - 0
Laurence Britton	0	1 - 0
Tom Heard	0	0 - 1
Stephen Goodlad	0	0 - 1
Jack Ma	0	1 - 0
Oli Smith	0	0 - 1

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

0 = (0 + 400 * (3 - 3)) / 6)