Event: Grand Prix S8

PDF Excel

Opponent	Rating	Result
Joseph P Alcock	1558	0 - 1
Owen Frodsham	1050	0 - 1
Ewan F Corden	1277	1 - 0

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

1162 = (3885 + 400 * (1 - 2)) / 3)