Event: Somerset Xmas Blitz

PDF Excel

Opponent	Rating	Result
Toby Kattenbelt	0	1 - 0
Daisy Kell	0	1 - 0
Edward Ames	0	0 - 1
Finlay Jackson	0	0 - 1
Beth Gillman	0	0 - 1

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

-80 = (0 + 400 * (2 - 3)) / 5)