Event: D&DCL Plate QP

PDF Excel

Opponent	Rating	Result
Alex Abdullahi	0	0 - 1
Kevin J Gallagher	0	0 - 1
Graeme Drayton	0	1 - 0
Douglas Bramley	0	½ - ½

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

-100 = (0 + 400 * (1 - 2)) / 4)