Event: North London League

PDF Excel

Opponent	Rating	Result
Alisha Vyas	1812	0 - 1
Ishan Karukar	0	0 - 1
Mikael Khan	0	1 - 0

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

471 = (1812 + 400 * (1 - 2)) / 3)