Event: SCL Div 3

PDF Excel

Opponent	Rating	Result
Peter Wei	0	0 - 1
Sam J Murphy	0	0 - 1
Matthew Coldwell	0	0 - 1
Michael J White	0	0 - 1

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

-400 = (0 + 400 * (0 - 4)) / 4)