Event: Division B

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Opponent	Rating	Result
Torrin Anderson	1647	0 - 1
Jack Garlick	1450	0 - 1
Darren Pickering	1576	1 - 0

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

1424 = (4673 + 400 * (1 - 2)) / 3)