Event: Winchester

PDF Excel

Opponent	Rating	Result
Louie Yang	1312	0 - 1
Malachi O'Brien	0	1 - 0
Oscar Willsher	0	1 - 0

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

571 = (1312 + 400 * (2 - 1)) / 3)