Event: IM Brown

PDF Excel

Opponent	Rating	Result
John W Atkinson	164	0 - 1
Ken Hunter	232	½ - ½
Zana Aziz	131	0 - 1
R Michael Round	165	0 - 1

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

-127 = (692 + 400 * (0 - 3)) / 4)