Event: Club Championship

PDF Excel

Opponent	Rating	Result
Richard J Walsh	0	0 - 1
Tak-Shing Chan	0	0 - 1
George S Taylor	0	1 - 0(def)

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

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