Event: SCL Div 4

PDF Excel

Opponent	Rating	Result
Ian Mackie	0	0 - 1
Rui Simpson	0	½ - ½
Michael J White	0	½ - ½

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

-133 = (0 + 400 * (0 - 1)) / 3)