Event: Division 3

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Opponent	Rating	Result
Adam Harvey	119	½ - ½
Ray Firman	61	½ - ½
Ray Firman	61	½ - ½
Hugo Smith	104	0 - 1
Sid McDonald	97	1 - 0
Michael MJ Osborn	106	0 - 1
Robert Lepley	93	½ - ½
Michael MJ Osborn	106	0 - 1

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

-7 = (747 + 400 * (1 - 3)) / 8)