Event: Club Championship

PDF Excel

Opponent	Rating	Result
John S Clarke	0	½ - ½
J Dave H Hair	0	0 - 1
Joe Murray	0	0 - 1
Andrew Perella	0	1 - 0

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

-100 = (0 + 400 * (1 - 2)) / 4)