Event: WMA Summer League Division 2

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Opponent	Rating	Result
Ray A Collett	153	½ - ½
Richard D Leaper	70	0 - 1
Steven Mildenhall	70	0 - 1
Praveen Joy	125	0 - 1
Kate M Donegan	135	0 - 1
Matthew Rowe	94	1 - 0
Peter Willett	146	0 - 1
Ray A Collett	153	0 - 1
Richard D Leaper	70	0 - 1
Steven Mildenhall	70	0 - 1
Praveen Joy	125	0 - 1
Kate M Donegan	135	1 - 0
Matthew Rowe	94	1 - 0
Peter Willett	146	½ - ½

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

-58 = (1586 + 400 * (3 - 9)) / 14)