Event: Rapidplay League

PDF Excel

Opponent	Rating	Result
Armand Catz	164	0 - 1
Armand Catz	164	0 - 1
Paul H Czyrski	92	1 - 0
Paul H Czyrski	92	1 - 0

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

128 = (512 + 400 * (2 - 2)) / 4)