Event: Derby & District Division 3

PDF Excel

Opponent	Rating	Result
Ryan L. Smith	1897	0 - 1
Keith Walsh	1622	0 - 1
Graeme Drayton	1326	1 - 0

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

1482 = (4845 + 400 * (1 - 2)) / 3)