Event: Club Championship

PDF Excel

Opponent	Rating	Result
Chris J Watt	0	0 - 1
John Swiers	0	0 - 1
Dion Luzha	0	0 - 1
David Halpin	0	0 - 1
David Callaghan	0	0 - 1

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

-400 = (0 + 400 * (0 - 5)) / 5)