Event: WMA Spring League Division 2

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Opponent	Rating	Result
Milenko Walner	70	0 - 1
AD (Tony) Williams	56	0 - 1
Jack Huffer	0	0 - 1
Steve Alcock	70	1 - 0
Margarita Sanchez	70	1 - 0
Peter J R Oliver	70	½ - ½
Milenko Walner	70	0 - 1
Jack Huffer	0	1 - 0
AD (Tony) Williams	56	0 - 1
Steve Alcock	70	1 - 0(def)
Margarita Sanchez	70	1 - 0
Peter J R Oliver	70	0 - 1

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

-18 = (602 + 400 * (4 - 6)) / 11)