Event: Division 4

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Opponent	Rating	Result
Shazaib Twaseen	1533	0 - 1
Charlie Carr	1104	0 - 1
Daniel Walker	1335	1 - 0

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

1191 = (3972 + 400 * (1 - 2)) / 3)