Event: Club Championship

PDF Excel

Opponent	Rating	Result
Chris Tatham	130	0 - 1
Charles Usher	0	1 - 0
David L Pedro	137	0 - 1
David Halpin	63	0 - 1
Alan Riddle	78	0 - 1

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

-158 = (408 + 400 * (1 - 4)) / 5)