Event: LADDER

PDF Excel

Opponent	Rating	Result
Nicholas H Skinner	0	0 - 1
Chris Jones	0	0 - 1
David Bradley	0	1 - 0
Nicholas H Skinner	0	0 - 1
Jon Young	0	0 - 1

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

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