Event: Division 4

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Opponent	Rating	Result
Colin McGarty	0	½ - ½
Manoj Arora	0	0 - 1
Joel Tofield-Brown	0	0 - 1
Shaun Eggleston	0	½ - ½
Eliot Rosenstock	0	½ - ½
Ian B Chester	0	1 - 0
David Stewardson	0	0 - 1
Jay Steel	0	1 - 0

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

-50 = (0 + 400 * (2 - 3)) / 8)