Event: Winter Blitz

PDF Excel

Opponent	Rating	Result
Roy Hughes	0	0 - 1
Daniel R Hedges	0	0 - 1
Edward T King	0	0 - 1
Nathan Adams	0	0 - 1
Paul J Coppard	0	0 - 1

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

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