Event: Winter Blitz

PDF Excel

Opponent	Rating	Result
Roy Hughes	0	0 - 1
Paul J Coppard	0	0 - 1
Martin Griffin	0	1 - 0
Edward T King	0	0 - 1
Nathan Adams	0	0 - 1

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

-240 = (0 + 400 * (1 - 4)) / 5)