Event: League Division 3

PDF Excel

Opponent	Rating	Result
Simon Bartle	1141	0 - 1
S Neil Bolton	1357	0 - 1
David Halpin	1159	0 - 1
Michael Carrigan	1164	1 - 0
David Callaghan	1073	1 - 0
David Morris	0	0 - 1
Zhixing Bai	0	1 - 0

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

785 = (5894 + 400 * (3 - 4)) / 7)