Event: Middle School House Chess Competition

PDF Excel

Opponent	Rating	Result
Koji Wong	732	1 - 0
Ebu Nwaiwu	948	0 - 1
Alex Mathur	1222	½ - ½

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

967 = (2902 + 400 * (1 - 1)) / 3)