Event: U9 swiss

PDF Excel

Opponent	Rating	Result
Arthur Homann	0	0 - 1
Idris Choudhry	0	1 - 0
Lewis Lawrence	0	0 - 1
Arjun Patel	0	1 - 0

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

0 = (0 + 400 * (2 - 2)) / 4)