Event: Summer KO Group D

PDF Excel

Opponent	Rating	Result
Colin Ripley	0	1 - 0
David J Walker	0	0 - 1
David Pritchard	0	0 - 1
John Boyd	0	0 - 1

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

-200 = (0 + 400 * (1 - 3)) / 4)