Event: SCL Div 3

PDF Excel

Opponent	Rating	Result
Paul Northcott	0	0 - 1
Tomas Rusin	0	0 - 1
Frank A Bonsey	0	0 - 1
Keith R Bateman	0	0 - 1
Jerry Ingamells	0	0 - 1

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

-400 = (0 + 400 * (0 - 5)) / 5)