Event: D&DCL Div 1

PDF Excel

Opponent	Rating	Result
Edward T Bromilow	156	0 - 1
Steven J Burke	166	½ - ½
Sohrab Panday	161	0 - 1
Mike Alcock	175	0 - 1

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

-136 = (658 + 400 * (0 - 3)) / 4)