Event: Division 1

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Opponent	Rating	Result
Peter Dhonau	168	0 - 1
Ian A Robson	186	0 - 1
Reza Gorji Pour	148	0 - 1
Charlie McLaren	181	0 - 1
Reza Gorji Pour	149	0 - 1
Tristram De Piro	149	½ - ½
Rob E Wilden	153	½ - ½
Jonathan Fowler	165	½ - ½
Michael J Taylor	203	0 - 1
Robert Ashworth	159	0 - 1
Ian P Blencowe	131	½ - ½
Colin R Chambers	140	½ - ½

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

-72 = (1932 + 400 * (0 - 7)) / 12)