Event: Online League - Division 2

PDF Excel

Opponent	Rating	Result
Paul W O'Brien	0	0 - 1
Anna Pontonutti	0	0 - 1
Marian Trofin	0	0 - 1
Michael A Redman	0	0 - 1

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

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