Event: Dave Nicholas Summer League

PDF Excel

Opponent	Rating	Result
Alun Richards	153	0 - 1
Richard J West	122	0 - 1
Alun Richards	153	0 - 1
Richard J West	122	0 - 1

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

-263 = (550 + 400 * (0 - 4)) / 4)