Event: SCL Div 5

PDF Excel

Opponent	Rating	Result
David Green	0	1 - 0
Philip J Ware	0	0 - 1
Manoj Chandar	0	0 - 1
Don Creasey	0	1 - 0
Graeme Ford	0	0 - 1

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

-80 = (0 + 400 * (2 - 3)) / 5)