Event: Derby & District Plate QP

PDF Excel

Opponent	Rating	Result
Ethan Adlington	0	1 - 0
George Moorcroft	0	0 - 1
Douglas Bramley	0	0 - 1
Nadia Prokofjeva	0	0 - 1

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

-200 = (0 + 400 * (1 - 3)) / 4)