Event: SCL Div 5

PDF Excel

Opponent	Rating	Result
Darrell Sturmey	0	0 - 1
Jia Feng	0	0 - 1
Rob Strachan	0	0 - 1
A Habbitts	0	1 - 0
Peter Wei	0	0 - 1

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

-240 = (0 + 400 * (1 - 4)) / 5)