Event: Division 3

PDF Excel

Opponent	Rating	Result
Karina Arutyunova	0	0 - 1
Dave R Wingrove	79	0 - 1
John Petley	0	0 - 1
John CH Jones	56	1 - 0
Jaime Ashworth	86	1 - 0

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

-36 = (221 + 400 * (2 - 3)) / 5)