Event: Middle School House Chess Competition

PDF Excel

Opponent	Rating	Result
Jin Chen Liu	731	0 - 1
Lavanya Jain	933	0 - 1
Avani Kumar	749	1 - 0

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

671 = (2413 + 400 * (1 - 2)) / 3)